Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Question
| 4 | The fraction of z-scores that fall within z = ±1.60 is ________. | ||||
| a | 0.8904 | ||||
| b | 0.8729 | ||||
| c | 0.8558 | ||||
| d | 0.8390 |
Expert Solution
Step 1
The answer is a. 0.8904.
Fraction of values under -1.60 is .0548
Fraction of values under 1.60 is .9452
The fraction of values between these two numbers is (0.9452-0.0548)=0.8904
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