Explain how to use the standard normal table to find the probability associated with the shaded area under the curve.
To find the probability of the shaded area between z 0.4 and z 1.9, first use the standard normal table to find the cumulative area to the left of z 1.9. Then, find the cumulative area to the left of z 0.4. Subtract the area for z 0.4 from the area for z 1.9 to find the probability of being within that specific interval.
Did your answer include the following?
mc002-1.jpg




%
8
16%26%73%98%
1.251.52.5
11%40%60%✔ 89%
P(z > –2.1)1–P(z 2.1)
0.01790.58320.98211
Which statement represents the percent of American adults with total cholesterol scores in the borderline-high range?




Using the standard normal table, about what percent of American adults have borderline-high cholesterol levels?5%35%✔ 40%90%
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