#2. Find the mean, median, and mode for the following sample of scores: 3, 6, 7, 3,...
Question:
#2. Find the mean, median, and mode for the following sample of scores:
3, 6, 7, 3, 9, 8, 3, 7, 5
Mean=
Median=
Mode=
#4. Find the mean, median, and mode for the scores in the following frequency distribution table:
X | F |
8 | 1 |
7 | 1 |
6 | 2 |
5 | 5 |
4 | 2 |
3 | 2 |
Mean=
Median=
Mode=
#6. A population of N = 15 scores has SX= 120. What is the population mean?
#10 One sample has a mean of M = 8 and a second sample has a mean of M = 16. The two samples are combined into a single set of scores.
a. What is the mean for the combined set if both of the original samples have n = 4 scores?
b. What is the mean for the combined set if the first sample has n = 3 and the second sample has n = 5?
c. What is the mean for the combined set if the first sample has n = 5 and the second sample has n = 3?
#12. A population of N = 15 scores has a mean of μ = 8. One score in the population is changed from X = 20 to X = 5. What is the value for the new population mean?
#15 A sample of n = 7 scores has a mean of M = 9. If one new person with a score of X = 1 is added to the sample, what is the value for the new mean?
Statistics for the Behavioral Sciences
ISBN: 978-1111830991
9th edition
Authors: Frederick J Gravetter, Larry B. Wallnau