Question

8. The following data are scores from a Physics final administered to 34 students. 81 76 93 99 47 67 69 72 83 88 56 62 91 94 98 63 77 84 98 75 79 67 73 65 89 86 91 85 97 73 56 92 88 83 Use the Chart below to construct a Frequency Distribution with 5 classes (15 pts) Class Tally (This column is optional.) Frequency

Answer 1

Solution - class Tolly Frequency 1 40 - 51 52 - - 63 4 8 64 -95 NL lll Nel llll oo 76-87 1944 N 11 12 88 - 99

Frequency Distribution Table Count Class Percentage 2.9 40 - 51 1 52-63 4 11.8 64 - 75 8 23.5 76 - 87 9 26.5 88 - 99 12 35.3 Total 34 100

Your Distribution Mean 79.32353 Median 82 13.58413 Standard Deviation (s) Skewness |-0.48163 Kurtosis |-0.50709 Lowest Score 47 99 Highest Score Distribution Range Total Number of Scores 52 34 Number of Distinct Scores 27 Lowest Class Value 40 99 Highest Class Value Number of Classes 5 Class Range 12