in a particular large school system, the average 10 of elementary school children is 10s and the variance is 225. A samp

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in a particular large school system, the average 10 of elementary school children is 10s and the variance is 225. A samp

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In A Particular Large School System The Average 10 Of Elementary School Children Is 10s And The Variance Is 225 A Samp 1
In A Particular Large School System The Average 10 Of Elementary School Children Is 10s And The Variance Is 225 A Samp 1 (9.67 KiB) Viewed 26 times
in a particular large school system, the average 10 of elementary school children is 10s and the variance is 225. A sample of 81 children is randomly selected from elementary schools within the system. What is the probability that the average 10 of this sample is below 108? Click here to access Z tables. T tables. Chi-squared tables or Formula Sheet
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