Thursday

July 30, 2015

July 30, 2015

Number of results: 73,095

**Statistics**

2. Any given data set consists of a set of numerical values. Please indicate by stating yes or no for each of the following statements whether or not it could be correct for any data set. (This question is not referring to the data that is given above.) a. There is no mode. b...
*July 7, 2010 by Anonymous*

**statistics**

A data set consists of a set of numerical values. Which, if any, of the following statements could be correct? There is no mode. There are two modes. There are three modes.
*March 13, 2010 by angel*

**statistics**

A data set consists of a set of numerical values. Which, if any, of the following statements could be correct? a. There is no mode. b. There are two modes. c. There are three modes.
*August 9, 2010 by Trina*

**statistics**

1. A datd set consists of a set of numerical values. which, if any, of the following statements could be correct? Thanks.
*April 3, 2012 by favor*

**statistics**

a data set consists of a set of numerical values. which of the following is correct? a. there is no mode b. there are 2 modes c. there are 3 modes I answered a there is no mode is this correct?
*May 4, 2010 by Brooke*

**statistic**

A data set consist of a set of numerical values. Which if any of the following statements could be correct? a. There is no mode. b. There are two modes. c. There are three modes.
*August 21, 2011 by Sonia*

**math\**

2. A data set consists of a set of numerical values. Which, if any, of the following statements could be correct? a. There is no mode. (True or False) b. There are two modes. (True or False) c. There are three modes. (True or False)
*August 13, 2011 by joanne*

**Statistics**

First 7: 57 61 57 57 58 57 61 Second 7: 61 52 69 64 46 54 47 2. Any given data set consists of a set of numerical values. Please indicate by stating yes or no for each of the following statements whether or not it could be correct for any data set. (This question is not ...
*July 8, 2010 by Anonymous*

**statistics**

Comparing Variations: 1. For the following exercise, complete the following: a. Find the mean, median, and range for each of the two data sets. b. Find the standard deviation using the rule of thumb for each of the data sets. c. Compare the two sets and describe what you ...
*April 17, 2010 by shanett*

**Statistics**

1. For the following exercise, complete the following by using the data sets below that provides the ages of the first seven presidents: a. Find the mean, median, and range for each of the two data sets. b. Find the standard deviation using the rule of thumb for each of the ...
*April 26, 2010 by Mercede*

**STATISTICS(NEED HELP PLEASE?)**

Consider the following set of data. (25, 6), (25, 51), (62, 34), (84, 15), (112, 57), (122, 14) (a) Calculate the covariance of the set of data. (Give your answer correct to two decimal places.) 40.17 (b) Calculate the standard deviation of the six x-values and the standard ...
*July 25, 2012 by Kim*

**math**

Consider the following set of data. (18, 12), (29, 48), (65, 29), (82, 24), (115, 56), (124, 13) (a) Calculate the covariance of the set of data. (Give your answer correct to two decimal places.) (b) Calculate the standard deviation of the six x-values and the standard ...
*May 30, 2013 by Sue 12*

**statistics**

Consider the following set of data. (18, 12), (29, 48), (65, 29), (82, 24), (115, 56), (124, 13) (a) Calculate the covariance of the set of data. (Give your answer correct to two decimal places.) . (b) Calculate the standard deviation of the six x-values and the standard ...
*June 23, 2013 by tracy*

**math**

Consider the following set of data. (18, 12), (29, 48), (65, 29), (82, 24), (115, 56), (124, 13) (a) Calculate the covariance of the set of data. (Give your answer correct to two decimal places.) Incorrect: Your answer is incorrect. . (b) Calculate the standard deviation of ...
*June 25, 2013 by tracy12*

**Stats**

Sooo I'm a little confused on these 2 questions: 1. Sample: a. method of collecting, presenting, and describing sample data b. a numerical value summarizing all the data of an entire population c. a collection, or set, of individuals, objects, or event whose properties are to ...
*June 11, 2013 by mysterychicken*

**Math**

Assume a data set is normally distributed with mean 11 and standard deviation 3. If the data set contains 30 data values, approximately how many of the data values will fall within the range 8 to 14?
*July 12, 2014 by Shelagh*

**Math**

Assume a data set is normally distributed with mean 182 and standard deviation 30. If the data set contains 600 data values, approximately how many of the data values will fall within the range 122 to 242?
*July 12, 2014 by Shelagh*

**Math**

The stem-and-leaf plot shows the heights in centimeters of Teddy Bear sunflowers grown in two different types of soil. Soil A 65,62,61,61 75,71,70 82,81 90 Soil B 59 63,69 70,72,73,76,77,78 83 a) Describe the overlap of the two sets of data. b) Calculate the mean of each data ...
*May 16, 2013 by Miae*

**math**

There are 5 numbers in a set of data. There are no repeated numbers. Which measure of data must represent a number in the set that is greater than 2 of the numbers in the set and less than 2 of the numbers? A. Median B. Mean C. Mode D. Range Can someone please explain how to ...
*April 9, 2015 by Grant*

**math**

there are 5 whole numbers in a data set. the least number is 14 and the greatest number is 25. the mean and median are both 19.what numbers could be the values in the data set? i got: 14 19 25. I do not know how to get the other two missing numbers in the data set? Please ...
*April 13, 2015 by I need help!!!!*

**Statistics**

I you are told that a data set has a mean of 25 and a variance of 0 you can conclude that A)There is only one observation in the data set B) There are no observations in the data set C)All of the observation in the data set are 25 D)Someone has made a mistake E) None of the ...
*September 13, 2011 by Dom*

**math**

By default, your numerical entry is scored as correct if it is within 1% of the correct answer. A rule of thumb is always to enter at least 3 digits for numerical questions. If the correct answer is 7.08809, which of the following entries would be counted as correct? 7.024 7....
*September 12, 2011 by ashley*

**math**

4. For Questions 4-7, use the following data: The number of file conversions performed by a processor per day for 10 days was: 15, 27, 25, 28, 30, 31, 22, 25, 27, 29 What is the arithmetic mean of the data? (Points: 5) 20.7 25.9 27 29 5. What is the trimmed mean of the data...
*November 7, 2011 by Anonymous*

**math**

suppose a data set has n elements with n greater than or equal to 6. as you know, if n is even, then the median of the set does not have to be an element of the set. for what values of n does the first quartile not have to be an element of the set?
*August 31, 2012 by rachel*

**math**

The following is a set of data from a sample of n = 5: 7 4 9 8 The following is a set of data from a sample of n = 5: 7 4 9 8 2 a. Compute the mean, median, and mode. b. Compute the range, variance, standard deviation, and coefficient of variation. c. Compute the Z scores. Are...
*October 27, 2012 by dannie0913*

**statistics**

Find 10-th, 60-th and 75-th percentiles in each of your data set, then write down each value that corresponds to those percentiles. Now use those values to find sample percentiles empirically (Suppose value “a” corresponds to 10-th percentile in my data set. After finding the ...
*November 20, 2011 by metu*

**chemistry**

Sixteen electrons are present in the Lewis structure of which of the following molecules? CO2 N2O SO2 more than one correct response no correct response If more than one correct response please show all correct answers thank
*February 23, 2014 by Johnny*

**math**

Each element in a data set is multiplied by 2, and each resulting product is then increased by 5. If 'm' is the mean of the final data set, which of the following expressions gives the mean of the original set in terms of 'm'? ~why is the answer (1/2)(m-5)?
*April 21, 2009 by Helen*

**math**

Each element in a data set is multiplied by 2, and each resulting product is then increased by 5. If 'm' is the mean of the final data set, which of the following expressions gives the mean of the original set in terms of 'm'? ~why is the answer (1/2)(m-5)?
*April 21, 2009 by Helen*

**Math**

The range of a set of data is 15, and the interquartile range of the same set is 12. Which of the following statements is true about the set? A) The two ranges are close together, so there is probably an outlier in this set B) The two ranges are close together, so there are ...
*February 25, 2013 by Frank*

**Science - Please Check My Written Answer**

Please help me with the following: Briefly explain why experiments having faulty design or inconsistent data are problems for scientists. List several reasons. There are several reasons that experiments with faulty designs or with inconsistent data are problematic for ...
*October 29, 2014 by Brady*

**chemistry**

In which of the following triatomic molecules or ions are both of the bonds multiple bonds? HCN CO2 NO2 more than one correct response no correct response If more than one correct response then please show all the correct answers. thanks
*February 23, 2014 by Johnny*

**statistics**

Job Sat. INTR. EXTR. Benefits 5.2 5.5 6.8 1.4 5.1 5.5 5.5 5.4 5.8 5.2 4.6 6.2 5.5 5.3 5.7 2.3 3.2 4.7 5.6 4.5 5.2 5.5 5.5 5.4 5.1 5.2 4.6 6.2 5.8 5.3 5.7 2.3 5.3 4.7 5.6 4.5 5.9 5.4 5.6 5.4 3.7 6.2 5.5 6.2 5.5 5.2 4.6 6.2 5.8 5.3 5.7 2.3 5.3 4.7 5.6 4.5 5.9 5.4 5.6 5.4 3.7 6.2...
*September 21, 2010 by chris*

**St josephs**

Machine set up is correct 60% of time & is incorrect 40% of time, 10 % of parts produced are defective when set up is correct, & 60 % would be defective if set up is incorrect. Find the probability that part is defective even though machine was set up correctly
*December 3, 2012 by Anu*

**math**

I asked this question before and I was told my work was correct by my friend insists she is correct HELP I did translate and simplify"six less than twice the sum of a number and three" choices are A)-2x b)2x c)-2x+9 d)2x-3 I set it up 2(x+3)-6 2x+6-6 answer=2x My friend did 2x...
*January 22, 2013 by ES PUZZLED*

**Math**

By default, your numerical entry is scored as correct if it is within 1% of the correct answer. A rule of thumb is always to enter at least 3 digits for numerical questions. If the correct answer is 7.48809, which of the following entries would be counted as correct? That is, ...
*September 28, 2011 by Angel*

**math**

Find the five-number summary of the following set of numbers. 0.16, 0.08, 0.27, 0.20, 0.22, 0.32, 0.25, 0.18, 0.28, 0.27 I came up with this 0.08, 0.18, 0.223, 0.27, 0.32 Is this correct? and then this one 2. Find the median of the following set of numbers. 52, 25, 55, 51, 67...
*October 14, 2007 by Christi*

**math**

Please help me to find the range of each set of numbers.7, 7, 5, 4, 1, 9, 8, 8, 8, 5, 2 The range of a set of data is the difference between the highest and lowest values in the set. This is true whether there is one or more scores at either extreme value. I hope this helps. ...
*April 16, 2007 by carmen*

**Math ~ Check Answers ~**

3. In the following list of data, find the range: 21, 28, 31, 35, 39, 43, 51, 60. 35 37 39****** 40 Pat recorded the weights of the first 10 fish she caught and released at Mirror Lake this season. The weights were 8 lb, 6 lb, 9 lb, 6 lb, 7 lb, 5 lb, 7 lb, 6 lb, 23 lb, and 6 ...
*March 20, 2014 by Cindy*

**Math ~ Check Answers ~ASAP**

3. In the following list of data, find the range: 21, 28, 31, 35, 39, 43, 51, 60. 35 37 39****** 40 Pat recorded the weights of the first 10 fish she caught and released at Mirror Lake this season. The weights were 8 lb, 6 lb, 9 lb, 6 lb, 7 lb, 5 lb, 7 lb, 6 lb, 23 lb, and 6 ...
*March 20, 2014 by Chloé*

**math 115**

Determine the maximum and minimum values of the following set of numbers. 3, -36/7, -1, -2/3,5/4,-5,26/9 I think the correct answer is 26/9 and -36/7
*November 1, 2009 by Jen*

**chemistry**

the number of nonbonding electrons exceeds the number of bonding electrons in the Lewis structure of which of the following molecules? HCN NH3 H2O more than one correct response no correct response if more than one correct response please show all correct responses. thanks
*February 23, 2014 by Johnny*

**math **

write a set of data with this following description there are 7 numbers in the data set the minimum is 17 the range is 45 the median is 32 the mode is 41
*December 10, 2011 by mina *

**statistics**

write a data set that fits the following description. there are 7 numbers in the data set the minimum is 17 the range is 45 the median is 32 the mode is 41
*September 9, 2011 by tyler *

**Math **

Use the data set {-100, -99, -98, ........-2, -1} to answer the following question. The data set has a first quartile of?
*November 6, 2010 by Chrissy*

**Advanced Math**

A set of 750 values has a normal distribution with a mean of 12.5 and a standard deviation of 0.36. A. What percent of the data is between 12.25 and 12.75? ANSWER: 51.6% B. Find the interval about the mean within wich 45% of the data lie. ANSWER: 12.28-12.72 C. Find the ...
*August 11, 2009 by Patrick*

**statistics**

Use the data set {0,4,4,8,4,16} to answer the following question. The mean of the data set is?
*November 6, 2010 by Chrissy*

**geometry**

List the following elements in proper set notation. Place the elements in numerical order within the set. * 0 * 1 * 123 * 4 * 34
*January 28, 2010 by Amy S*

**geometry**

List the following elements in proper set notation. Place the elements in numerical order within the set. * 0 * 1 * 123 * 4 * 34
*February 1, 2010 by amanda *

**geometry**

how do you do list the following elements in proper set notation. Place the elements in numerical order within the set. *0*123*4*34* 1
*June 3, 2010 by alex*

**algebra/how can I solve this/Thank You**

Draw a stem-and-leaf plot for the data set. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) Data set A: The annual wages of employees at a small accounting firm are given in thousands of dollars. 50 15 18 60 36 21 22 22 34 24 ...
*June 9, 2014 by Mary Ann *

**chemistry**

in which of the following pairs of compounds are both members of the pair molecular compounds? PCl3 and LiBr CCl4 and KOH NaH and CaF2 more than one correct response no correct response if more than one response please show all the correct answers thanks
*February 23, 2014 by Johnny*

**Math-confused...plz help**

I. Use Chebyshev’s theorem to find what percent of the values will fall between 183 and 227 for a data set with a mean of 205 and standard deviation of 11. II. Use the Empirical Rule to find what two values 99.7% of the data will fall between for a data set with a mean of 297 ...
*October 16, 2011 by Jennifer*

**statistics**

I am seeing some inconsistencies with regards to finding the upper and lower quartiles when you you have an odd number in your data set. Which is correct, counting the median in both your upper and lower set, or ignoring it?
*March 1, 2013 by Terri*

**Math-Statistics**

I. Use Chebyshev’s theorem to find what percent of the values will fall between 156 and 276 for a data set with a mean of 216 and standard deviation of 12. II. Use the Empirical Rule to find what two values 68% of the data will fall between for a data set with a mean of 219 ...
*January 20, 2011 by Tameka*

**Math**

I. Use Chebyshev’s theorem to find what percent of the values will fall between 156 and 276 for a data set with a mean of 216 and standard deviation of 12. II. Use the Empirical Rule to find what two values 68% of the data will fall between for a data set with a mean of 219 ...
*January 21, 2011 by Tameka*

**Stats**

I. Use Chebyshev’s theorem to find what percent of the values will fall between 183 and 227 for a data set with a mean of 205 and standard deviation of 11. II. Use the Empirical Rule to find what two values 99.7% of the data will fall between for a data set with a mean of 297 ...
*October 15, 2011 by Jennifer*

**math**

How do you find the sum of the mode from each set of data? Set A: ( 4,9,7,2,4 ) Set B: ( 11,6,4,6,2 ) Set C: ( -3,2,9,-3,-3)
*April 23, 2014 by Allison*

**Math**

14 16 18 18 17 16 17 20 What is the range of the data set? Is this correct? 20-14=6
*January 7, 2015 by Amy*

**statistics**

I.use the chebyshev's theorem to find out what percentage of the values will fall between 201 and 257 for a data set with a mean of 229 and standard deviation of 14. II. use the emperical rule to find out two values 68% of the data will fall between for a data set with a mean ...
*October 11, 2010 by mary*

**algebra.having problems**

Draw a stem-and-leaf plot for the data set. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) Data set A: The annual wages of employees at a small accounting firm are given in thousands of dollars. 50 15 18 60 36 21 22 22 34 24...
*June 11, 2014 by Mary Ann*

**Math**

1) What is the mean of the set of the following data? 9,7,14,11,14,15,14 A)12 B)13 C)14 D)15 2)What is the median of the following data set? 9,7,14,11,14,15,14 A)7 B)9 C)11 D)14
*April 3, 2015 by Amber*

**Psychology Statistics**

Determine whether the numerical value is a parameter or a statistic? In a phone survey of 100 random homes in a country, 21 families had garages. Is this a parameter because the data set of 100 random homes is a population? Is this a statistic, because the data set of 100 ...
*September 9, 2011 by Margaret Sweet*

**MATHS URGENT **

The values for x when f(x) = 0 are: x=-2 and x=3 My question is: The function f(x) can be written in the form of a(x-p)(x-q)(x-r) Write down one possible set of values for p, q, and r? Now Ive got the correct answer x = -3, 2 and 2 Could you show me step-by step how to end up ...
*October 1, 2009 by Adrianna*

**SAT prep help**

Set M consists of the consecutive integers from -15 to y, inclusive. If the sum of all the integers in set M is 70, How many numbers are in the set?
*September 28, 2013 by Anonymous*

**Quick English check**

The sentences below have transitive verbs so each verb has a direct object. Read each sentences and underline its direct object. (Underline the subject once, and double underline the action verb and circle the do. please correct me if I'm wrong! 5. He removed the picture from ...
*September 7, 2014 by Anonymous*

**statistics**

can you please explain the following so that I can understand how the numbers for each part was found: A set of 50 data values has a mean of 15 and a varience of 36. Find the standard score (z score) of a data value =21
*October 30, 2014 by MissPatte*

**Math**

One advantage of a _____________ is that the actual data values are retained in the graphical display of the data. A) Pie chart B) Dot plot (This one?) C) Histogram D) boxplot If we want to discuss any gaps and clusters in a data set, which of the following should not be ...
*September 5, 2013 by Andy*

**algebra/ please ck my answers**

Draw a stem-and-leaf plot for the data set. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) Data set A: The annual wages of employees at a small accounting firm are given in thousands of dollars. 50 15 18 60 36 21 22 22 34 24 ...
*June 10, 2014 by Mary Ann *

**chemistry**

Which of the following statements concerning differences between ionic and molecular compounds is correct? Molecular compounds contains two elements, and ionic compounds contain three of more elements ionic compounds contain oxygen, and molecular compounds do not. molecular ...
*February 23, 2014 by Johnny*

**statistics**

Below are six data sets with 6 randomly selected scores in each data set. Your task is to determine if the scores were drawn from a population with μ = 5. Before you calculate the one-sample t test for each sample, make a guess as to whether or not you think the sample ...
*February 15, 2014 by Anonymous*

**statistics**

Consider the following data set: 3, 4, 6, 7, 9, 9, 11. Identify a number you could add to the set to keep the mean equal to the median.
*January 16, 2011 by Anonymous*

**Science help URGENT**

Muscles located in the walls of the small intestine help push digested material along. Muscles located in the walls of arteries help push blood along. Based on this information and your understanding of muscle types, which of the following statements is correct? Both sets of ...
*November 20, 2014 by Jeff*

**Precalculus**

Question Details: Finding Regression for each set of data & finding best fit equation for each set of data: Data 1: X: 1 2 3 4 5 Y: 3.1 12.1 20.7 33.9 50.8 Data 2: X: 1 2 3 4 5 Y: 1.16 3.46 5.11 5.98 6.75
*March 11, 2007 by harry*

**Chemistry**

1. Which of the following statements concerning dipole-dipole attractions is correct? a) Dipole-dipole attraction is a weaker force than covalent bonds, being about 50% as strong. b) Dipole-dipole attractions increase as the distance between the dipoles increase. c) Dipole-...
*January 29, 2012 by Hannah*

**Statistics**

Calculate the mean, median, and mode for the following data set. Is the distribution normal or skewed? If its skewed, is it positively skewed or negatively skewed? Which of these measures of central tendency would be most appropriate? Data Set: 100, 97, 99, 70, 72, 75, 82, 68...
*October 18, 2011 by Joy Chapman*

**CHEM****

I just have 2 other questions that I just want to make sure on: Place the following elements in order of decreasing atomic size: tellurium, bromine, argon, cesium, strontium, and selenium. (Te, Br, Ar, Cs, Sr, Se) ~~(or...the correct ranking cannot be determined)~~ I think ...
*November 13, 2007 by K*

**Language Arts**

On the sentence, "The choir sat/set their hymnals on the bench." Would the correct verb be set?
*December 13, 2011 by Brandi*

**statistics**

Twelve college students were surveyed about the distance from their house to the college they attended. 12 18 54 13 15 24 8 5 14 27 1 20 1. Using the data set above, find the percentile ranking for the data point 24. 2. Using the data set above, what distance corresponds to ...
*January 19, 2013 by anoneemose*

**Math**

Let me know if I'm correct using power of 10: numerical of 10^2 is 1x10x10 and if multiply the numerical to get the sum in numerical and decimal is 100
*May 26, 2009 by Sam*

**math**

if the mean of a set of data is 23,must 23 be one of the data values?why?
*October 23, 2008 by martha*

**SAT math**

Set M consists of the consecutive integers from -15 to y, inclusive. If the sum of all the integers in set M is 70, How many numbers are in the set? SAT prep help - Anonymous, Saturday, September 28, 2013 at 3:16pm a. 33 b. 34 c. 35 d. 36 e. 37
*September 28, 2013 by Anonymous*

**business satistics**

a set of integers consists of 2,3,5,7,11,12,x. if x is increased by 1 the median of the set stays unchanged. however, if x decreases by 1, the median of the set also decreases by 1. what is the value of x?
*September 16, 2013 by busi*

**math**

in which set would 2/5, 15/36, and 24,12 be placed and why set A = 1/4, 7/25, 5/8, 3 3/5 set B = 2/3, 4/7, 11/12, 1/9, 34/18 Please note that we don't do students' homework for them. Once you have come up with a response to these questions, please re-post and let us know what ...
*January 26, 2007 by bill*

**Statistics**

A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20
*October 12, 2011 by Jen*

**Stats**

A set of 50 data values has a mean of 15 and a variance of 36. Find the standard score of a data value = 30
*October 15, 2011 by Jennifer*

**statistics**

A set of 50 data values has a mean of 15 and a variance of 36. Find the standard score of a data value = 30
*August 28, 2012 by Kcr7*

**math**

What are median and mode and how do you find them? Median- The middle number in a set of data. You find it by simply couting to the center of the set of data. Mode- The number that occurrs the most times in a set of data.
*September 21, 2006 by Margaret*

**algebra**

Statistical information for a data set is given. • The mean is 18.1 • The z-score for 13.0 is -1.7 What is the standard deviation for this data set? f 3.4 g 1.7 h 5.1 j 3.0
*April 30, 2014 by LALALA*

**Math word problems**

An outdoor supply store has its regularly priced $160 jackets on sale for $120. What is the discount rate? 120/160*100=75% but that doesn't seem right. I believe it should be 25% discount, but I dont know how to set that up. Can someone tell me if the above is correct, if not...
*January 27, 2015 by Ashley*

**Math**

I need to make a bar graph using the data set of my last problem. Data Set: 5,7,7,7,11,12,12,13,14,15,16,18
*September 19, 2012 by Jonathan*

**Help plz!! Math....**

A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20
*October 12, 2011 by Jen*

**Can someone help me please?**

A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20
*October 13, 2011 by Jennifer*

**Math**

I have to define function. Would it be a set of possible input values? Not sure if I worded it correct.
*March 8, 2011 by Cindy*

**Math**

In Example 2, find the percent of the total and the number of degrees in each sector for mountains, theme parks, relatives, and other. Find the median of the data set in Example 3. In which category does it fall? Find the average unemployment rate for Example 4. Determine ...
*May 21, 2013 by Kelly*

**statistics**

The data set healthy breakfast contains the ratings of 77 cereals and the number of grams of sugar contained in each searving. A simple linear regression model considering Sugar as the explanatory variable and Rating as the response variable produced the following regression ...
*September 13, 2012 by Gee*

**math**

A baker measured the length of different loaves of bread. The interquartile range of a data set was 12 inches. Which statement is also true for the data set?
*May 16, 2013 by john*

**math**

Emily,Zeke,Harry,& Brook each conducted surveys on the number of books people have in their homes. Then they answered the question below. "MUST ALL MEASURES OF CENTRAL TENDENCY APPEAR AS A NUMBER IN A SET OF DATA COLLECTED? A. Emily says this is always true because all the ...
*April 2, 2013 by andrea*

**Stats**

A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20. I'm not sure how to do this....please help
*October 12, 2011 by Jen*

**Math-geometry**

I do not understand set-builder notation..... Using correct mathematical notation and symbols, express the following in set-builder notation: Z = {16, 17, 18, 19, 20}
*July 9, 2011 by Jen*