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Sagot :
Answer:
a) 0.3017
b) 0.9138
Step-by-step explanation:
Given a normal salary distribution with mean $47,750 and standard deviation $5,680, you want the probabilities that a randomly selected salary is ...
- between $35,000 and $45,000
- more than $40,000.
Calculator
A suitable calculator tells us these probabilities are ...
a) P(35k < X < 45k) ≈ 0.3017
b) P(40k < X) ≈ 0.9138
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