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August 31, 2015

Homework Help: statistics

Posted by lashara on Sunday, September 26, 2010 at 7:57pm.

School 1 Statistics: Average truancy per student is 8 days per semester with a standard deviation 2.2 and a population of 250 students.
a. What percent of the population is truant more than 9 days?
b. What percent of the population is truant less than 3 days?
c. What percent of the population is truant between 5 and 10 days?
d. What percent of the population is truant between 8.5 and 10 days?
e. What raw score would produce a truancy percent of the top 15% of the students who missed the least amount of school?

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