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s2008m [1.1K]
2 years ago
6

How do I do this question?

Mathematics
1 answer:
seropon [69]2 years ago
7 0
D because the sign is greater than or equal to sign.
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The mean of a normal probability distribution is 500 and the standard deviation is 10. about 95 percent of the observations lie
PIT_PIT [208]

Answer:

So about 95 percent of the observations lie between 480 and 520.

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The Empirical Rule states that, for a normally distributed random variable:

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About 95 percent of the observations lie between what two values?

From the Empirical Rule, this is from 500 - 2*10 = 480 to 500 + 2*10 = 520.

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