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Flashcards in Range interquartile in group data Deck (5)
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1

The cumulative frequency shows 120 students spending time studying. What is the range?

range = 14 - 2

= 12 hrs

2

The cumulative frequency shows 120 students spending time studying. What is 25% of 120?

25/100 * 120 = 30

3

The cumulative frequency shows 120 students spending time studying. What is 50% of 120?

50/100 * 120 = 60

4

The cumulative frequency shows 120 students spending time studying. What is 75% of 120?

75/100 * 120 = 90

5

The cumulative frequency shows 120 students spending time studying. What is the median and interquartile range?

median = 6.4 hrs

lower quartile = 5.4

upper quartile = 7.8

interquartile range = 7.8 - 5.4

= 2.4 hrs