Question
In a large population of college educated adults the mean IQ is 118 with a standard deviation of 20 suppose 200 adults from this population
In a large population of college educated adults the mean IQ is 118 with a standard deviation of 20 suppose 200 adults from this population are randomly selected for a market research campaign the probability that the sample mean IQ is greater than 120 is ?
0.00001
0.0790
0.1230
0.9210
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The Homework Clubs Preparing For Algebra Math Help For Struggling Kids
Authors: Susan Everingham
1st Edition
1723708585, 978-1723708589
