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April 19, 2015

Homework Help: Statistic

Posted by GN on Sunday, October 24, 2010 at 1:57am.

TABLE 12-11

Parents complain that children read too few storybooks and watch too much television nowadays. A survey of 1,000 children reveals the following information on average time spent watching TV and average time spent reading storybooks

Average time spent reading story books
Average time spent watching TV Less than 1 hour Between 1and 2 hours More than 2 hours
Less than 2 hours 90 85 130
More than 2 hours 655 32 8

(a) Referring to Table 12-11, how many children in the survey spent less than 2 hours watching TV and more than 2 hours reading story books on average?
A) 8
B) 130
C) 175
D) 687

(b) Referring to Table 12-11, how many children in the survey spent less than 2 hours watching TV and no more than 2 hours reading storybooks on average?
A) 8
B) 130
C) 175
D) 687

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