Question

find the area of the shaded region the graph to the right depicts IQ scores of adults and those scores are normally distributed with a mean of 100 and a standard deviation of 15 the area of the shaded region is 85-125

6.2.7 Assigned Media Question Help Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table. Click to view page 2 of the table The area of the shaded region is (Round to four decimal places as needed)

Answer 1

Given that l= 100, oils P(85 < x < 125) = ? Soli p(85 a xe 125) = P( 85.7100 cze 125.7100) = P(ale < 1.6667) = P(Z < 1.6667) - P(Z <-1) 0.9522 - 0.1587 = 10.7935 Node: if we sound -score to a decimal e, P(Z < 1.67 0.9525. So P (85 < x <125) = 0.9525 - 0.1587 =10.1938] so round Z-score according to your answer.