Homework Help: math

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

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 there any outliers?
d. Describe the shape of the data set.

math - PsyDAG, Sunday, October 28, 2012 at 6:41pm
The 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

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...
Math - Use the data set {-100, -99, -98, ........-2, -1} to answer the ...
math - write a set of data with this following description there are 7 numbers ...
Statistics - 2. Any given data set consists of a set of numerical values. Please...
statistics - Use the data set {0,4,4,8,4,16} to answer the following question. ...
math - 4. For Questions 4-7, use the following data: The number of file ...
Statistics - I you are told that a data set has a mean of 25 and a variance of 0...
statistics - An animal trainer obtained the following sample data (Table A) in a...
statistics - write a data set that fits the following description. there are 7 ...

For Further Reading

First Name:
School Subject:
Answer: