Posted - 03/10/2009 : 14:03:32 The accompanying table represents the number of cell phone minutes used for one week by 23 users.

Number of Minutes 71–80 61–70 51–60 41–50 31–40

Number of Users 10 7 2 3 1

Which interval contains the median?

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anonmeans

Posted - 03/10/2009 : 19:55:49

quote:Originally posted by sri340

The accompanying table represents the number of cell phone minutes used for one week by 23 users.

Number of
Minutes 71–80 61–70 51–60 41–50 31–40
Number of
Users 10 7 2 3 1

Which interval contains the median?

At a guess, you're supposed to list out the number of users in each interval, or at least count them out. You have:

. . .10 + 7 + 2 + 3 + 1 = 23 users

If you list the numbers from "1" to "23", what is the median value?

In which interval of "number of minutes" would you reach this person in line?

Ultraglide

Posted - 03/10/2009 : 15:05:08 The median is the middle value when the numbers are ranked from highest to lowest. If there are an even number of entries, take the mean (average) of the middle 2.