A set of scores ranges from a high of X= 24 to a low of X=12 and has a mean of 18. Which of the following is the most likely value for the standard deviation for these scores?
a. 3 points
b. 6 points
c. 12 points
d. 24 points
A set of scores ranges from a high of x=24 to a low of x=12 and has a mean of 18. Which of the following is the most likely value for the standard deviation for these scores? Please show work. (The answer is 3 points, but I don't understand why.) a. 3 points b. 6 points c. 12 points d. 24 points
question 4
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b) (6 points) Student scores from a high school on an IQ test are normally distributed with a mean 100 and standard deviation of 15. What score is exceeded by 10% of IQ test scores?
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IQ-scores are standard-score transformed scores having a mean of 100 and a standard deviation of 15; SAT scores are standard-score transformed scores having a mean of 500 and a standard deviation of 100. In what follows, X refers to a raw score from a distribution with a mean of X and a standard deviation of S, and SAT and IQ refer to the corresponding transform of that score. Solve for the missing value in each of the following: (a) X=-2.5;Xmean=...
25 Anormal population - 0 - 8. A random sample and scores from 54 Wurthe-wore for this sample is population has a mean of 24. A random sample of 4 scares is obtained from a mal population with probability of obtaining met greater than 22 for this sample! - 20 and a t West - 20 the following samples is deur likely to be obtained For normal perelation with a Band for a sample of n = 4 X- 5...
The coin size data (measured in millimeters) collected from each group is shown below. Low Income High Income 28 19 17 18 26 21 18 17 24 21 16 25 14 11 33 24 13 16 24 21 26 18 31 30 23 20 27 20 18 21 25 14 16 27 31 You can copy the data into Excel by highlighting the data, right-clicking and selecting Copy, then opening Excel, clicking on a blank cell, and selecting Paste from...
3,2 The ollowing set of data is from a sample of n - 6: 74973 12 a. Compute the mean, median, and mode. b. Compute the range, variance, standard deviation, and coeffi- cient of variation. c. Compute the Z scores. Are there any outliers? d. Describe the shape of the data set.
> How did we get that 4 that we used to divide?
Ayabonga Gwebani Sat, Nov 13, 2021 10:01 PM