Posted by **Jeannie** on Tuesday, September 2, 2014 at 12:24pm.

Which interval describes the number of hours spent studying in a typical week for about 50% of the students sampled?

2 to 9

9 to 14

9 to 20

14 to 20

A five number summary of respones is:

2,9, 14, 20, 60

- statistics -
**MathMate**, Tuesday, September 2, 2014 at 12:39pm
A five-number summary represents the following qualifiers:

minimum

Q1

median

Q3

maximum

the interval minimum/median represents 50% of the data in the lower half.

the interval median/maximum represents 50% of the data in the upper half.

the interval Q1/Q3 represents 50% of the data in the middle half, which better represents the population.

So choose the appropriate interval and post your answer for a check if you wish.

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