Question 1183224: 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.
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A graph with a bell-shaped curve, divided into 3 regions by 2 lines from top to bottom, one on the left side and one on the right side. The region between the lines is shaded. Moving from left to right, the x-axis below the first line is labeled 80. The x-axis below the second line is labeled 105.
The area of the shaded region is
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! between 80 and 105 is z=(80-100)/15=-20/15 or -1.33 and z=(105-100)/15=+0.33
that area is 0.5393
Can do on calculator 2ndVARS2ENTER(80,105,100,15)ENTER
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