Part 3.m4v (209 MB) Grouped Frequency Distribution X 95.99 90.94 85-89 80-84 75-79 70-74 65-69 Freq 2 5 12 15 10 2 2 ch

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Part 3 M4v 209 Mb Grouped Frequency Distribution X 95 99 90 94 85 89 80 84 75 79 70 74 65 69 Freq 2 5 12 15 10 2 2 Ch 1 (54.94 KiB) Viewed 44 times

Part 3.m4v (209 MB) Grouped Frequency Distribution X 95.99 90.94 85-89 80-84 75-79 70-74 65-69 Freq 2 5 12 15 10 2 2 ch 50 48 43 31 C% 100% 96% 86% 62% 32% 12% 8% 4% a) Find the 30th percentile frequency count: .30 · 50 - 15 • Thus, 30th percentile is located in the 75-79 range in which there are 10 scores of which we need 9 to total 15. Six are already found below that interval. Thus, we need 9/10 of the width of the interval which ranges from 74.5 to 79.5 9/10 times 5 = 4.5 We add that amount to the lower true limit to find the 30 percentile (74.5+4,5 - 79,0). 16 6 4 . 60-64 1 2 . SS-59 1 1 2% Total SO Previous