Friday

March 27, 2015

March 27, 2015

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

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 there any outliers?

d. Describe the shape of the data set.

- math -
**PsyDAG**, Sunday, October 28, 2012 at 6:41pmThe first set of data only has n = 4.

Mode is the most frequently occurring score, if any.

Median = 50th percentile.

Range = highest score - lowest

The mean = sum of scores/number of scores

Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance.

Standard deviation = square root of variance

Z = (score-mean)/SD

I'll let you do the calculations.

**Answer this Question**

**Related Questions**

statistics - Below are six data sets with 6 randomly selected scores in each ...

math - 4. For Questions 4-7, use the following data: The number of file ...

Stats - Sooo I'm a little confused on these 2 questions: 1. Sample: a. method of...

Math ~ Check Answers ~ - 3. In the following list of data, find the range: 21, ...

Math ~ Check Answers ~ASAP - 3. In the following list of data, find the range: ...

math check - Consider the following set of data. Pairs 1 2 3 4 5 Sample A 2 8 7 ...

math - Each element in a data set is multiplied by 2, and each resulting product...

math - Each element in a data set is multiplied by 2, and each resulting product...

Statistics - I you are told that a data set has a mean of 25 and a variance of 0...

Psychology Statistics - 2 For a sample of n = 20 individuals, how large a ...