Essentials of Statistics for the Behavioral Sciences
8th Edition
ISBN: 9781133956570
Author: Frederick J Gravetter, Larry B. Wallnau
Publisher: Cengage Learning
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Chapter 3.5, Problem 1LC
During the month of October, an instructor recorded the number of absences for each student in a class of n = 20 and obtained the following distribution.
| Number of Absences | f |
| 5 | 1 |
| 4 | 2 |
| 3 | 7 |
| 2 | 5 |
| 1 | 3 |
| 0 | 2 |
- a. Using the
mean , what is the average number of absences for the class? - b. Using the
median , what is the average number of absences tor the class? - c. Using the
mode , what is the average number of absences for the class?
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Chapter 3 Solutions
Essentials of Statistics for the Behavioral Sciences
Ch. 3.2 - Find the mean for the following sample of n = 5...Ch. 3.2 - A sample of n = 6 scores has a mean of M = 8. What...Ch. 3.2 - Prob. 3LCCh. 3.2 - A sample of n = 6 scores has a mean of M = 40. One...Ch. 3.2 - Prob. 5LCCh. 3.2 - Prob. 1LCACh. 3.2 - Prob. 2LCACh. 3.2 - A population has a mean of = 40. a. If 5 points...Ch. 3.2 - A sample of n = 4 scores has a mean of 9. If one...Ch. 3.3 - Prob. 1LC
Ch. 3.3 - If you have a score of 52 on an 80-point exam,...Ch. 3.3 - The following is a distribution of measurements...Ch. 3.5 - During the month of October, an instructor...Ch. 3.6 - Which measure of central tendency is most affected...Ch. 3.6 - What is it usually considered inappropriate to...Ch. 3.6 - Prob. 3LCCh. 3.6 - A distribution with a mean of 70 and a median of...Ch. 3 - Why is it necessary to have more than one method...Ch. 3 - Find the mean, median, and mode for the following...Ch. 3 - Find the mean, median, and mode for the following...Ch. 3 - Find the mean, median, and mode for the scores in...Ch. 3 - Find the mean, median, and mode for the scores in...Ch. 3 - For the following sample: a. Assume that the...Ch. 3 - A population of N = 15 scores has X = 120. What is...Ch. 3 - A sample of n = 8 scores has a mean of M = 12....Ch. 3 - A population with a mean of = 8 has X = 40. How...Ch. 3 - A sample of n = 7 scores has a mean of M = 9. If...Ch. 3 - A sample of n = 6 scores has a mean of M = 13. If...Ch. 3 - A sample of n = 15 scores has a mean of M = 6. One...Ch. 3 - A sample of n = 10 scores has a mean of M = 9. One...Ch. 3 - A population of N = 15 scores has a mean of = 8....Ch. 3 - A sample of n = 7 scores has a mean of M = 16. One...Ch. 3 - A sample of n = 7 scores has a mean of M = 5....Ch. 3 - A population of N = 8 scores has a mean of = 16....Ch. 3 - A sample of n = 9 scores has a mean of M = 13....Ch. 3 - A sample of n = 9 scores has a mean of M = 20. One...Ch. 3 - One sample of n = 12 scores has a mean of M = 7...Ch. 3 - One sample has a mean of M = 8 and a second sample...Ch. 3 - One sample has a mean of M = 5 and a second sample...Ch. 3 - Explain why the mean is often not a good measure...Ch. 3 - A researcher conducts a study comparing two...Ch. 3 - Schmidt (1994) conducted a series of experiments...Ch. 3 - Stephens, Atkins, and Kingston (2009) conducted a...Ch. 3 - Earlier in this chapter (p. 67), we mentioned a...
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