Use the following set of scores a 30-item quiz to : 1200620.
Use the following set of scores on a 30-item quiz to answer items 82-88.
30, 25, 24, 28, 27, 29, 24, 26, 27, 25, 23, 23, 27, 23, 28, 20
22, 21, 21, 28, 22, 24, 25, 27, 26
82. Create a frequency distribution for the scores.
83. What is the mean for the sample?
84. What is the median for the sample?
85. What is the mode for the sample?
86. What is the standard deviation for the scores?
87. Is the distribution “normal”? Why or why not?
88. Suppose you had another set of scores with the same mean as this one but with a standard deviation of 3.11. What would you know about the second distribution?