For question 7 refer to the box & whisker graph below that shows how much time w

Question

For question 7 refer to the box & whisker graph below that shows how much time was spent per night on homework for sophomore class at a certain high school during September.

Average Minutes Per Night Spent On Homework

                             0       20                48    60                                                                                        190

a)       What percent of the sophomores spend more than 60 minutes on

                              homework per night?

b)       What is the range of times that the middle 50% of the sophomores

                             spend on homework per night?

c)       What percent of the sophomores spend less than 20 minutes per night

                                on homework?

Explanation / Answer

ANSWER

a)

The percent of the somophores spend more than 60 minutes on homework per night is 25%

b)

The range of times that the middle 50% of the somophpores spend on homework per night is

IQR =60 -40 = 20

c)

The percent of somophores spend less than 20 minutes per night on homework is 25 %.

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