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April 24, 2014

Search: . A data set consists of a set of numerical values. Which, if any, of the following statements could be correct? Underline correct response

Number of results: 13,812

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...
Wednesday, July 7, 2010 at 10:55pm by Anonymous

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 ...
Tuesday, September 13, 2011 at 12:24am by Dom

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...
Monday, November 7, 2011 at 12:54pm 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.
Saturday, March 13, 2010 at 9:25pm 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.
Monday, August 9, 2010 at 5:33pm by Trina

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 ...
Thursday, July 8, 2010 at 9:13pm by Anonymous

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 ...
Thursday, May 16, 2013 at 8:12pm by Miae

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
Sunday, March 11, 2007 at 1:46pm by harry

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?
Tuesday, May 4, 2010 at 9:44pm by Brooke

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)
Saturday, August 13, 2011 at 6:29pm by joanne

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...
Saturday, October 27, 2012 at 6:08pm by dannie0913

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)?
Tuesday, April 21, 2009 at 9:08pm 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)?
Tuesday, April 21, 2009 at 10:09pm by Helen

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 ...
Saturday, January 19, 2013 at 9:34pm by anoneemose

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 ...
Saturday, April 17, 2010 at 11:49am by shanett

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...
Tuesday, September 21, 2010 at 1:31pm by chris

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
Saturday, December 10, 2011 at 11:11am by mina

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.
Thursday, September 21, 2006 at 8:10pm by Margaret

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
Friday, September 9, 2011 at 3:50pm 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?
Saturday, November 6, 2010 at 6:06pm by Chrissy

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
Wednesday, September 19, 2012 at 12:11am by Jonathan

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 ...
Thursday, March 20, 2014 at 10:19pm 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 ...
Thursday, March 20, 2014 at 10:08pm by Chloé

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?
Thursday, May 16, 2013 at 7:37pm 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 ...
Tuesday, April 2, 2013 at 6:04pm by andrea

statistics
Use the data set {0,4,4,8,4,16} to answer the following question. The mean of the data set is?
Saturday, November 6, 2010 at 5:55pm by Chrissy

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 ...
Sunday, November 20, 2011 at 8:55am by metu

math
why is the mean of a set of data sometimes a number not included in the set of data
Monday, September 15, 2008 at 11:45pm by amber

Statistics
X Y 0 23 2 27 2.3 29 4.1 32 5 35 What is the correlation for this data set? 10) Find the regression line for this data set.
Saturday, May 25, 2013 at 3:58pm by Ana

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 ...
Monday, April 26, 2010 at 12:36am by Mercede

math
The mean of a set of 51 data points is 3.04. If a data value of 16 were added to the data set, what would be the approximate value of the new mean?
Monday, April 9, 2012 at 7:39pm by Nicole

math
The mean of a set of 51 data points is 3.04. If a data value of 16 were added to the data set, what would be the approximate value of the new mean?
Tuesday, April 24, 2012 at 10:56pm by coal

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?
Saturday, September 28, 2013 at 3:16pm by Anonymous

math
Please help me to find the five-number summary of the following set of numbers.338, 226, 149, 391, 247, 501, 300, 223, 320 According to a definition I found online, "The five-number summary of the data consists of the minimum data point, the first quartile, the median, the ...
Monday, April 23, 2007 at 1:55am by carmen

Math
A stem-and-leaf plot shows the heights in centimeters of Teddy Bear sunflowers grown in two different types of soil. Soil A Soil B 5 9 5 2 1 1 6 3 9 5 1 0 7 0 2 3 6 7 8 2 1 8 3 0 9 Key:9|6 means 69 Key: 5|8 means 58 a) Describe the overlap of the two sets of data. b) Calculate...
Thursday, May 16, 2013 at 6:37pm by Miae

Probability
a. What is the probability that a person selected at random from this HWAS data set will be between 30 and 39 years of age inclusive? Data set 38 43 28 33 36 51 37 41 45 26 49 47 33 45 50 25 46 36 24 25 58 55 47 35 34 29 20 52 30 37 24 26 29 31 21 31 33 33 42 22 27 25 29 31 42...
Saturday, December 22, 2012 at 3:09am by Lorena

Math
Identify the outlier in the data set, and determine how the outlier affects the mean, median, mode and range of the data set. 7,7,4,9,6,26,4,5,8,4 Please help me
Tuesday, January 10, 2012 at 8:27pm by Lisa

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)
Wednesday, April 23, 2014 at 8:01pm by Allison

statistics
1. A datd set consists of a set of numerical values. which, if any, of the following statements could be correct? Thanks.
Tuesday, April 3, 2012 at 5:02pm by favor

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 ...
Saturday, February 15, 2014 at 12:17pm by Anonymous

Math
Can someone help me with this: Descibe how to construct a histogram for a set of data and Describe how to construct a box plot for a set of data
Monday, February 23, 2009 at 9:52pm by Jack

Probability
b. What is the probability that a person selected at random from this HWAS data set will be shorter than 65" or taller than 70"? The same data set
Saturday, December 22, 2012 at 3:12am by Lorena

Math
I have 3 questions: 1. Construct a data set of 8 items that has a mean absolute deviation of 0.5 and for which the mean is 10. 2. Construct a data set of 7 items that has a mean of 2 and a mode of 5. 3. Construct a data set of 7 items that has a median of 4 and a mean of 6.
Tuesday, September 11, 2012 at 7:54pm by Ailin

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
Saturday, September 28, 2013 at 3:43pm 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?
Monday, September 16, 2013 at 10:11pm by busi

physical chemistry
how can i get the critical temperature of CO2 given a set of data which consists of surface tension and density at different temperatures. The table looks like this: T(oC) density surface tension 0 0.927 4.50 20 0.772 1.16 I really need some help about this...please...
Saturday, July 5, 2008 at 9:16pm by kkk

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...
Tuesday, October 18, 2011 at 1:41am by Joy Chapman

statistics help please!
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. (is this 75th percentile? 2. Using the data set above, what ...
Sunday, January 20, 2013 at 2:55pm by anoneemose

HELP PLEASE
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. (is this 75th percentile? 2. Using the data set above, what ...
Sunday, January 20, 2013 at 2:10pm by anoneemose

math
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. (is this 75th percentile? 2. Using the data set above, what ...
Sunday, January 20, 2013 at 4:37pm by anoneemose

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?
Friday, August 31, 2012 at 9:19pm by rachel

Math
I have found the mean for each data set, but I am not sure if I have calculated the MAD(mean absolute deviation)for each data set correctly. Can someone please help me? Calculate the mean of each data set. Soil A: 61+61+62+65+70+71+75+81+82+90=71.8; =71.8 Soil B: 59+63+69+70+...
Friday, May 17, 2013 at 2:12pm by Miae

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 ...
Thursday, September 5, 2013 at 3:16pm by Andy

statistic
With an exponential transformation, how does the data set (x, y) change? (2 points) (log x, y) (x, log y) (log x, log y) cannot be determined without a data set
Thursday, December 12, 2013 at 10:47pm by helen

statistic
With an exponential transformation, how does the data set (x, y) change? (2 points) (log x, y) (x, log y) (log x, log y) cannot be determined without a data set
Thursday, December 12, 2013 at 10:50pm by helen

MTH233/statistics UOP
Find one quantitative and one qualitative data set from a reliable source and determine the best way to present that data graphically. Show your graph and explain your reasoning for choosing this presentation method. When might the reported median of data be more appropriate ...
Thursday, July 22, 2010 at 1:51pm by sue

math
What is the median of this data set? 33, 34,27, 42, 54,21, 62, 62. thank you Put the data set in order: 21, 27,33, 34, 42, 54, 62, 62 Median= (34+42 )/2
Thursday, April 26, 2007 at 8:33pm by Mary

Math
theres a question on my homework packet. Here it is: -The Data contains 7 elements. -all the elements are greater than 6 but less than 24. -the mode of the set is 18 -the range and the mean are 15 -the meadian is 16 -The set cobtains exactley 3 odd numbers -when ordered from ...
Wednesday, July 16, 2008 at 11:10pm by Veronica

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 ...
Tuesday, May 21, 2013 at 1:28pm by Kelly

statistics
calculate the correlation for data set A. Data Set A: xi = 65, 55, 50, 45, 35 yi= 44, 52, 68, 20, 36 I know how to find the mean, variance, standard deviation, and z-score. The part I am having trouble finding is the ZxiZyi. In the chart that I have to fill in it says Zxi in ...
Wednesday, July 6, 2011 at 6:07pm by Hannah

Someone plz help me....i need help this is due now
A set of 50 data values has a mean of 27 and a variance of 16. I. Find the standard score (z) for a data value = 19. II. Find the probability of a data value < 19. III. Find the probability of a data value > 19.
Saturday, November 12, 2011 at 9:34pm by Jennifer

math
if the mean of a set of data is 23,must 23 be one of the data values?why?
Thursday, October 23, 2008 at 4:56pm by martha

data range
Given the data set 10 40 22 43 35 18 27 22, which is the largest number of those listed below?
Sunday, May 1, 2011 at 11:45pm by Marshall

data range
Given the data set 10 40 22 43 35 18 27 22, which is the largest number of those listed below?
Sunday, May 1, 2011 at 11:47pm by Marshall

statistic
Explain the transformation needed to convert the following data to a linear data set. {(1,0.98), (2,1.39), (3,1.71), (4, 1.98), (5,2.22), (6,2.43)
Friday, December 13, 2013 at 4:11pm by helen

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 ...
Sunday, October 16, 2011 at 8:51pm by Jennifer

Statistics
A set of 50 data values has a mean of 27 and a variance of 16. I. Find the standard score (z) for a data value = 19. II. Find the probability of a data value < 19. III. Find the probability of a data value > 19. Show all work.
Saturday, February 25, 2012 at 9:10pm by Blackqueen

Data Management
Does interchanging the independent and dependent variables change the correlation coefficient for the set of data
Thursday, November 13, 2008 at 4:53pm by Sheila

math
A set of data is normally distributed with a mean of 16 and a standard deviation of 0.03. What percent of the data is between 15.2 and 16?
Wednesday, March 10, 2010 at 1:18pm by Sally

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
Wednesday, October 12, 2011 at 4:44pm 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
Saturday, October 15, 2011 at 12:41pm 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
Tuesday, August 28, 2012 at 2:32pm by Kcr7

statistic
Explain the transformation needed to convert the following data to a linear data set. {(1, 0.98), (2, 1.39), (3, 1.71), (4, 1.98), (5, 2.22), (6, 2.43)} (6 points)
Thursday, December 12, 2013 at 10:48pm by helen

statistic
Explain the transformation needed to convert the following data to a linear data set. {(1, 0.98), (2, 1.39), (3, 1.71), (4, 1.98), (5, 2.22), (6, 2.43)} (6 points)
Friday, December 13, 2013 at 11:42am by helen

statistics
9. Explain the transformation needed to convert the following data to a linear data set. {(1, 0.98), (2, 1.39), (3, 1.71), (4, 1.98), (5, 2.22), (6, 2.43)} (6 points)
Friday, December 13, 2013 at 7:15pm by helen

statistic
Explain the transformation needed to convert the following data to a linear data set. {(1, 0.98), (2, 1.39), (3, 1.71), (4, 1.98), (5, 2.22), (6, 2.43)} (6 points)
Saturday, December 14, 2013 at 9:08am by Helen

algebra 2
how do i set up data to find the standard deviation of the data?
Thursday, May 6, 2010 at 4:59pm by chicken littell

algebra 2
how do i set up data to find the standard deviation of the data?
Thursday, May 6, 2010 at 4:59pm by chicken littell

stats
A set of 50 data values has a mean of 30 and a variance of 4. I. Find the standard score (z) for a data value = 26. II. Find the probability of a data value < 26. I think the first part is z=(26-30)/4 = -4/4 = -1. I am not sure how to go about the second problem. I could ...
Wednesday, July 20, 2011 at 9:07pm by Celest

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 ...
Thursday, January 20, 2011 at 11:32pm by Tameka

Statistics
A set of 50 data values has a mean of 35 and a variance of 25. I. Find the standard score (z) for a data value = 26. II. Find the probability of a data value > 26.
Monday, October 17, 2011 at 7:29am by don

MATH
A set of 50 data values has a mean of 18 and a variance of 4. I. Find the standard score (z) for a data value = 20. II. Find the probability of a data value < 20.
Sunday, October 30, 2011 at 9:01pm by Jen

Homework Help
A set of 50 data values has a mean of 48 and a variance of 9. I. Find the standard score (z) for a data value = 43. II. Find the probability of a data value < 43.
Sunday, December 2, 2012 at 7:16pm by Huffette

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 ...
Friday, January 21, 2011 at 12:10am 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 ...
Saturday, October 15, 2011 at 12:22pm by Jennifer

statistics
Group the largest data set and find mean, median, mode, variance, standard deviation, 15-th, 45-th and 80-th percentiles of the grouped data. Then find the same sample statistics using the ungrouped data. Is there any difference? Comment.
Sunday, November 20, 2011 at 8:56am by metu

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
Wednesday, October 12, 2011 at 6:28pm 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
Thursday, October 13, 2011 at 9:28am by Jennifer

statistics
A set of data is normally distributed with a mean of 98 and a standard deviation of 15. What is the probability that the value from the data is less than 88 ? 
Thursday, December 1, 2011 at 9:40pm by Anonymous

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
Wednesday, October 12, 2011 at 9:38pm by Jen

algebra
Does this set of data have any outliers? Data: 1, 2, 2, 4, 6, 6, 7, 8, 9, 10, 12, 13, 16, 16, 18
Monday, October 24, 2011 at 1:55pm by tracy

Math
Does this set of data have any outliers? Data: 1, 2, 2, 4, 6, 6, 7, 8, 9, 10, 12, 13, 16, 16, 18. no or yes
Thursday, May 2, 2013 at 8:43pm by Allie

Making Data Graphs
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 ...
Monday, August 15, 2011 at 6:08pm by maria

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. ...
Monday, April 16, 2007 at 11:02am by carmen

Math....please help
A set of 50 data values has a mean of 27 and a variance of 16. I. Find the standard score (z) for a data value = 19. II. Find the probability of a data value < 19. III. Find the probability of a data value > 19.
Saturday, November 12, 2011 at 7:05pm by Jennifer

Math
The mean of a set of normally distributed data is 550 and the standard deviation is 35. What percent of the data is between 515 and 585?
Tuesday, May 8, 2012 at 6:50am by nichole

statistics
The mean of a normally distributed data set is 226.2. The data item, 230, has a z-score of 0.2. Find the standard deviation.
Wednesday, January 16, 2013 at 4:36pm by Anonymous

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 ...
Monday, October 11, 2010 at 11:16pm by mary

Math
I am stumped and confused can someone help? The following data set gives the difference between the winning and losing scores in 50 randomly observed high school basketball games: 2, 12, 1, 2, 12, 5, 14, 2, 45, 9, 1, 8, 18, 28, 9, 4, 30, 16, 4, 12, 8, 13, 20, 9, 17, 13, 49, 17...
Friday, July 31, 2009 at 2:52pm by B.B.

statistics
Suppose you have a data set that is normal and with a mean of 78 and a standard deviation of 9. Within what range would you expect to fine 95% of the data?
Monday, December 13, 2010 at 10:47pm by Razz

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