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ExtremeBDS [4]
3 years ago
12

Suppose a variable x is normally distributed with a standard deviation of 10. given that 30.85% of the values of x are greater t

han 70, what is the mean of x?
Mathematics
1 answer:
julsineya [31]3 years ago
8 0
The 69.15 percentile corresponds to 0.500 standard deviations above the mean. If 70 is 10*.500 = 5 units above the mean, then the mean is 65.
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Lorico [155]

By definition we have to:

In mathematics, an irrational number is a number that can not be expressed as a fraction m / n, where m and n are integers and n is different from zero.

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4 0
4 years ago
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Dmitrij [34]

Answer:

The correct answer is b. 116,900

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Step-by-step explanation:

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# books = $725,000/$6.20 = 116935 or approximately 116900 copies of the book.

8 0
4 years ago
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