10 of 10 Determine the total area under the standard normal curve in parts (a) t

Question

10 of 10 Determine the total area under the standard normal curve in parts (a) through (c) below. Click the icon to view a table of areas under normal curve. the (a Find the area under the normal curve to the left of z 2 plus the area under the normal curve to the right ofz 2. The combined area is (Round to four decimal places as needed.) (b) Find the area under the normal curve to the left -154 plus the area under the normal curve to the right of z 2.54. of z The combined area is (Round to four decimal places as needed.) (c) Find the area under the normal curve to the left of ze plus the area under the normal curve to the right of 120 0.26 The combined area is (Round to four decimal places as needed) Enter your answer in each ot the answer boxes

Explanation / Answer

A) area= P(Z < -2) + P(Z > 2) = 0.0228 + 1 - P(Z < 2) = 0.0228 + 1 - 0.9772 = 0.0456

B) P(Z < -1.54) + P(Z > 2.54) = 0.0618 + 1 - P(Z < 2.54) = 0.0618 + 1 - 0.9945 = 0.0673

C) P(Z < -0.26) + P(Z > 1.2) = 0.3974 + 1 - P(Z < 1.2) = 0.3974 + 1 - 0.8849 = 0.5125

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