if a data set has mean 70, and standard deviation 5, is 80 asuspect outliner/

29,369 results

  1. Chem

    Am i correct for the following? 1. "quick data" such as that of a mass measurement on a balance located at the far side of the lab, can be recorded on a paper scrap and then transferred to the report sheet at your lab station. TRUE? 2. the lab

  2. algebra

    Two similar data sets are being compared. The standard deviation of Set A is 4.8. The standard deviation of Set B is 6.5. Which statement about the data sets is true? a)The mean of the data in Set B is greater than the mean of the data in Set A. b)The

  3. college math

    20. Calculate the range, variance, and standard deviation of the following data set: 5, 5, 6, 6, 6, 8, 8, 8, 8, 10, 10, 11, 12, 12, 20 (Points: 5) Range = 15; Variance = 225; Standard Deviation = 7.5 Range = 3.85; Variance = 14; Standard Deviation = 3.74

  5. Math

    Describe a scenario where you expect a set of data to have A.) a large standard deviation B.) a small standard deviation The prize for winning a contest can be chosen from category a or category b. Prizes from category a have a mean of $1000 and a standard

  6. Math- Assignment Due

    Please help me, it would be greatly appreciated. 1.) A set of data was collected as shown in the table. Data value: Frequency: 5. 9 6. 9 7. 14 8. 9 9. 13 10. 7 11. 9 The standard deviation of the data is A..) 1.90 B.) 2.00 C.) 2.33 D.) 7.93 2.) A group of

  7. Math

    This question says: 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 of this set?

  8. Algebra II

    What is the standard deviation of the data set? Round the answer to the nearest tenth. 5, 9, 11, 4, 8, 9, 12

  10. Statistics

    A college statistics class conducted a survey of how students spend their money. They asked 25 students to estimate how much money they typically spend each week on fast food. They determined that the mean amount spent on fast food is $31.52 with a

  11. Algebra

    Find the mean and standard deviation of the data set. If necessary, round to the nearest hundredth. 4, 8, 5, 12, 3, 9, 5, 2 Mean is 6 and standard deviation is about 13.33?

  12. 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.

  13. Stat

    1) one indicator of a outlier is that an observation is more than 2.5 standard deviations from the mean. Consider the data value 80. (a) if a data set has mean 70 and standard deviation 5, is 80 a suspect outlier? be sure to work that explains your answer

  15. Algebra

    Use a calculator to find the mean and standard deviation of the data. Round to the nearest tenth. 6,7,19,7,18,7 A. mean = 9; standard deviation = 26.4 B. mean = 11.9; standard deviation = 26.4 C. mean = 10.6; standard deviation = 6.1 D. mean = 9; standard

  16. statistics

    if a data set has mean 70, and standard deviation 5, is 80 asuspect outliner/

  17. Statistics

    The table below shows the LOS for a sample of 11 discharged patients. Using the data in the table, calculate the mean, range, variance, and standard deviation, and then answer questions e and f. Round the variance and standard deviation to one decimal

  18. math

    A set of data is normally distributed with a mean of 455 and a standard deviation of 25. What percent of the data is in the interval 405–455?

  20. statics

    4. In a certain game of chance, your chances of winning are 0.2. If you play the game five times and outcomes are independent, the probability that you win at least once is 5. A set of data is found to have a sample standard deviation of 25. Suppose 9 were

  21. Math

    Roughly speaking, the standard deviation indicates how far, on average, the observations are from the mean. Do you think that for the data set below the standard deviation will give a good indication of the typical deviation from the mean? 2, 3, 4, 4, 5,

  22. math

    Using the data in the table, calculate the mean, range, variance, and standard deviation, and then answer questions e and f. Round the variance and standard deviation to one decimal place. a. Mean b. Range c. Variance d. Standard deviation e. What value is

  23. Algebra (Normal Distribution)

    The mean of a normally distributed data set is 12, and the standard deviation is 2. ___% of the data points lies between 8 and 16. Find the percentage

  25. statistics

    Given a data set with the mean = 44 and the standard deviation = 15, what is the value of the Third Quartile?

  26. Math

    What is the standard deviation of the following data set rounded to the nearest tenth? 51.8, 53.6, 54.7, 51.9, 49.3 A) 1.9*** B) 3.3 C) 1.8 D) 3.4

  27. chemistry assignment

    A laboratory instructor gives a sample of amino acids powder to each students,1,2,3and4,and they weigh the samples.The true. value is 8.72g.Their results for three trials are 1:8.72g,8.74g,8.70g 2:8.56g,8.77g,8.83g 3:8.50g,8.48g,8.51g

  28. 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

  30. math

    A set of data items is normally distributed with a mean of 70. Convert the data item to a z-score, if the standard deviation is as given. data item: 80; standard deviation: 15

  31. Math, Please Help

    Describe a scenario where you expect a set of data to have A.) a large standard deviation B.) a small standard deviation

  32. HELPP math

    13,14,29,26,41,53,60,7,89,14 Based on the numbers above what is the variance and the standard deviation of the data set. I think 616.2 is the variance I think 24.83 is the standard deviation Am I correct????

  33. math 12

    The mean and standard deviation of a set of data are two measurments that describe the data. A certain student has written 8 out of 10 unit exams, which are equally weighted. The student misses the ninth exam and receives a score of 0. However, for the

  35. 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 ?

  36. statistics

    If the mean of a set of data is 21.00, and 6.00 has a z score of –1.50, then the standard deviation must be

  37. statistics

    if the mean of a set of data is 23.00 and 10.00 has a z-score of -1.30, then the standard deviation must be?

  38. Algebra

    The mean is 18.1 The z-score for 13.0 is - 1.7. What is the standard deviation for this data set.

  40. math

    find the standard deviation for the following: 8,5, 12, 8, 9, 15, 21, 16, 3. There is a formula but our teacher wants us to do it a specific way. For example, 47, 41, 32, 53, 57. First you find the mean, which is 46 and then subtract it with each number in

  41. Statistics

    If the mean of a set of data is 20.00 and 12.20 has a z-score of -1.30, then the standard deviation must be: What formula would you use to determine this?

  42. Math

    Please check my responses! ASAP Consider the following data set: 3,4,6,7,9,9,11 If 5 were added to each of the values, how would that affect the median? My Answer: The median would change and increase. Consider the following data set: 3,4,6,7,9,9,11 If 5

  43. math

    If someone asked: what can we learn from analyzing the standard deviation of a set of data that we couldn't learn from just looking at the measures of average, how would I answer? I know that average is the value or number in the middle of the data set and

  45. algebra 1

    I have found standard deviation and the mean for a data set and have created a plot of the data now I have to find within how many standard deviation of the mean does all the data fall and I am not sure how to do this

  46. 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

  47. 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

  48. 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

  50. 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

  51. Math

    8. Which data is more spread: Data Set A or Data Set B? Explain your choice. Data Set A has a mean of 70, a max of 85, a min of 58, a standard deviation of 12.3, and a mode of 84 Data Set B has a mean of 72, a max of 88, a min of 72, a standard deviation

  52. Math

    Consider the following data set: 27,49,15,43,35,57,13,73,23,31,32,41,61, 39,7. Suppose that you graph this data, with bins of size 10, with the first bin starting 1 below the smallest value in your data. What is the range approximation for the standard

  53. math

    A scientist calculated the mean and standard deviation of a data set to be and . She then found that she was missing one data value from the set. She knows that the missing data value was exactly 3 standard deviations away from the mean. What was the

  55. math

    I'm sorry, but I am asking this question again because the response I received was a question that I could not answer - that's why I am asking here. Thank you. If someone asked: what can we learn from analyzing the standard deviation of a set of data that

  56. math

    Using the data in the table, calculate the mean, range, variance, and standard deviation, and then answer questions e and f. Round the variance and standard deviation to one decimal place. a. Mean b. Range c. Variance d. Standard deviation e. What value is

  57. math

    You are given the following: there are 27 pieces of data mean is 60 standard deviation is 25 You realize that one of the pieces of data is inputted wrong..... it was a 25, but it is suppose to be 52.... find the actual mean and standard deviation for the

  58. math

    Show using an example the effect, if any, on the standard deviation of adding a data value to a set of data that is equivalent to the mean. Not quite sure what "standard deviation of adding a data value to a set of data that is equivalent to the mean,"

  60. math

    Using the data in the table, calculate the mean, range, variance, and standard deviation, and then answer questions e and f. Round the variance and standard deviation to one decimal place. a. Mean b. Range c. Variance d. Standard deviation e. What value is

  61. 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?

  62. Statistics

    9 points) In a normally distributed data set, find the value of the standard deviation if the following information is given. a. The mean is 226.2. x = 230. z = 0.2. Standard deviation

  63. 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?

  65. 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

  66. stats

    Using the following data set a. Calculate the mean, mode, median, standard deviation, minimum, maximum and range b. Draw the histogram of the data set. Use 100 as bin width

  67. stats

    Using the following data set a. Calculate the mean, mode, median, standard deviation, minimum, maximum and range. b. Draw the histogram of the data set. Use 100 as bin width.

  68. 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

  70. Statistics

    The table below shows the LOS for a sample of 11 discharged patients. Using the data in the table, calculate the mean, range, variance, and standard deviation, and then answer questions e and f. Round the variance and standard deviation to one decimal

  71. mathematics

    How is the interquartile range of a data set different from the standard deviation of a data set?

  72. math 12

    The mean and standard deviation of a set of data are two measurments that describe the data. A certain student has written 8 out of 10 unit exams, which are equally weighted. The student misses the ninth exam and receives a score of 0. However, for the

  73. statistics

    If the average number of textbooks is 16, the standard deviation is 5, and the average age of a professors is 43, with a standard deviation of 8, which data set is more variable?

  75. Stastics

    When we convert x-value to z- score and use Standard Normal distribution, which of the following statements is true? a) The mean of z-score is zero and standard deviation of the z-scores is the same as the standard deviation of original data b) The mean

  76. Algebra 2

    A set of data with a mean of 64 and a standard deviation of 5.9 is normally distributed. What value is within +3 standard deviation of the mean?

  77. Math 12

    The mean and standard deviation of a set of data are two measurments that describe the data. A certain student has written 8 out of 10 unit exams, which are equally weighted. The student misses the ninth exam and receives a score of 0. However, for the

  78. 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?

  80. 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?

  81. 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

  82. 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.

  83. Statistics

    Use the Empirical Rule to find what two values 95% of the data will fall between for a data set with a mean of 294 and standard deviation of 13.

  85. Pre-calculus

    A set of data is normally distributed with a mean of 500 and a standard deviation of 40. What percent of the data is between 460 and 540? Answer: 68.3%

  86. 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?

  87. Pre-cal

    A set of data is normally distributed with a mean of 16 and a standard deviation of 0.3. What percent of the data is between 15.2 and 16? I had: 16-t(0.3)=15.2 and 16-t(0.3)=15.7 which came to 0.497-.341=0.156. rounded off I came up with 16%. What did I do

  88. Pre calc

    A set of 500 values has a normal distribution. The mean of the data is 24 and the standard deviation is 2. Find the range about the mean which includes 50% of the data.

  90. algebra 2

    how do i set up data to find the standard deviation of the data?

  91. algebra 2

    how do i set up data to find the standard deviation of the data?

  92. 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.

  93. 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

  95. 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

  96. statistics

    if the average number of textbooks in professors' offices is 16, the standard deviation is 5, and the average age of the professors is 43,with a standard deviation of 8 ,which data set is more variable ?

  97. statistics

    A study of hours devoted to a graduate course outside of classroom time generates a mean score of 90 with a standard deviation of 20. The mean age of the students was 31 with a standard deviation of 5 years. What is the relative dispersion of the two data

  98. 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

  100. statistics

    2. Why is it important to know the mean and standard deviation for a data set when applying the empirical rule? 3. If we are focused on 68% of the normal distribution, what percentage of the distribution is left in the upper tail only? 4. What value

  101. algebra

    What is the standard deviation of the following data set: 1.3 2.4 1.5 2.6 1.3 2.4 1.3 9 9 1.8

  102. Algebra

    The mean is 18.1 the data set for 13 is -1.7 What is the standard deviation for this data set.

  103. statistics

    Would someone mind checking me and pointing out which may be incorrect. I THINK I get it but.... Calculate the range, variance, standard deviation for the data set given 72, 80, 80, 82, 88, 90, 96? I just wanted to know if I am doing this correctly. These

  105. Statistics

    The mean of a data set is 23 and 12.6. The z-score is -1.30. What is the standard deviation?

  106. statistics

    if the mean of a set of data is 23.00, and 12.60 has a z-score of -1.30, then what is the standard deviation?

  107. Contemporary Mathematics

    Given the set of data; 25, 15, 50,18, 42,36. find the standard deviation.

  108. math 160

    If the mean of a set of data is 20.00, and 12.20 has a z-score of –1.30, then the standard deviation must be

  110. statistics help please

    A set of data is NOT NORMALLY DISTRIBUTED. The mean is 300, and the standard deviation is 10. According to Chebyshev's Theorem, atleast what percent of the data would lie between 270 and 330? The farthest I got was 1- 1/10squared x 100% = .99, I am not

  111. Statistics

    data from sample of 400 cases, variable has 95% confidence interval of 54.3 to 54.7 I found the mean- how do i find standard error- step by step please. Standard error = sd/√n Note: sd = standard deviation; n = sample size. You'll need to determine the

  112. 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

  113. Statistics

    Find the population standard deviation for the data set? 1, 2, 3, 5, 6, 7

  115. 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

  116. statistics

    hey guys,im sorry if i did any wrong that my question has been deleted,but please help me... hi,care to explain this..its really hard..i only got 2/40 in my exam yesterday,so we have a retest tomorow,and i really need to pass that in order to pass..please

  117. Math Help

    When asked for standard deviation when dealing with grouped data for linear regression, do you give them for each the x and y variable or is there a way to configure for grouped data set? I have a Ti 84 plus calculator

  118. statistics

    ok i was given a set of data asked to create a graph of my choice to represent the data then i'm asked Does the sahpe of the distribution allow the use of the mean and the standard deviation to describe it? ok how does the mean and the standard deviation

  120. math

    find the standard deviation for the following: 8,5, 12, 8, 9, 15, 21, 16, 3. There is a formula but our teacher wants us to do it a specific way. For example, 47, 41, 32, 53, 57. First you find the mean, which is 46 and then subtract it with each number in

  121. Albebra II

    Find the standard deviation of the data set to the nearest tenth: (21, 13, 18, 16, 13, 35, 12, 8, 15) Answer: 16.8 thanks

  122. 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:

  123. statistics

    if the mean of a normally distributed set of data is 100 and the standard deviation is 10, a z score of 2 corresponds to raw value of?

  125. statistics

    How do you create a set of 6 data points such that the variance is sixteen and the standard deviation is four and the mean is ten.

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