# HW 4 - 6 Assuming that these scores represent an entire...

This preview shows pages 1–2. Sign up to view the full content.

STATISTICS Homework Assignment #4 1. Given the two distributions below: The variability of scores in distribution A would be MORE THAN the variability of scores in distribution B . 2. The measure(s) of variability which use(s) only two numbers in the calculation of the measure is (are) BOTH OF THE ABOVE a. range c. both of the above b. interquartile range d. neither of the above 3. The difference between Q3 and Q1 is the INTERQUARTILE RANGE a. range c. average deviation b. interquartile range d. variance Use the following data to answer Questions 4-9. 26, 31, 18, 23, 19, 28, 25, 14, 25 4. What is the range for this set of data? 18 (HIGH – LOW) +1 5. What is the average deviation for this set of data? 4.20

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 6. Assuming that these scores represent an entire population, what is the variance? Use raw score and deviation method. 25.28 7. Assuming that these scores represent an entire population, what is the standard deviation? 5.06 8. Assuming that these scores represent a sample, what is the variance? Use raw score and deviation method. 28.44 9. Assuming that these scores represent a sample, what is the standard deviation? 5.33 10. Compute s for the grouped frequency distribution below. The number of class intervals is only three. In order to simplify your work. Use both deviation and raw score method. Class Interval f 15 - 19 3 10 - 14 6 5 - 9 1 DID IN NOTEBOOK...
View Full Document

## This note was uploaded on 09/29/2010 for the course PSYC 2101 taught by Professor Staff during the Spring '08 term at East Carolina University .

### Page1 / 2

HW 4 - 6 Assuming that these scores represent an entire...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online