Determine the following standard normal (z) curve areas. (Round all answers to four decimal places.) (a) The area under the z curve to the left of 1.74.9591 Correct: Your answer is correct. (b) The area under the z curve to the left of - 0.69.2451 Correct: Your answer is correct. (c) The area under the z curve to the right of 1.2.1151 Correct: Your answer is correct. (d) The area under the z curve to the right of - 2.82.9976 Correct: Your answer is correct. (e) The area under the z curve between - 2.22 and 0.53.6887 Correct: Your answer is correct. (f) The area under the z curve between - 1 and 1.6826 Correct: Your answer is correct. (g) The area under the z curve between - 5 and 5.3830 Incorrect: Your answer is incorrect.

Question

Mathematics

Mary Ortiz

15 November, 21:23

Determine the following standard normal (z) curve areas. (Round all answers to four decimal places.) (a) The area under the z curve to the left of 1.74.9591 Correct: Your answer is correct. (b) The area under the z curve to the left of - 0.69.2451 Correct: Your answer is correct. (c) The area under the z curve to the right of 1.2.1151 Correct: Your answer is correct. (d) The area under the z curve to the right of - 2.82.9976 Correct: Your answer is correct. (e) The area under the z curve between - 2.22 and 0.53.6887 Correct: Your answer is correct. (f) The area under the z curve between - 1 and 1.6826 Correct: Your answer is correct. (g) The area under the z curve between - 5 and 5.3830 Incorrect: Your answer is incorrect.

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Answers (1)

Know the Answer?

Chris Weiss · Answer 1

(g) The area under the z curve between - 5 and 5 is 1.0000

Step-by-step explanation:

The area between z=-5 and z=5 is about 0.9999994267. Rounded to 4 decimal places, it is 1.000.

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The incorrect answer shown in your problem statement is the approximate area between - 0.5 and + 0.5. My calculator says that area is 0.3829--but that is not what the question asked.