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Question 4.17: Find the area under the normal curve between z = 0.71. and z...

Find the area under the normal curve between z = 0.71. and z = 1.28.

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From the z table, the area to the left of z = 1.28 is 0.8997. The area to the left of z = 0.71 is 0.7611. The area between z = 0.71 and z = 1.28 is therefore 0.8997-0.7611 = 0.1386. See Figure 4.6.

155402-FIGURE 4.6

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