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Ber [7]
3 years ago
12

On a test that has a normal distribution, a score of 49 falls three standard deviations below the mean, and a score of 59 falls

two standard deviations above the mean. Determine the mean of this test.
Mathematics
1 answer:
DedPeter [7]3 years ago
6 0

Answer:

Step-by-step explanation:

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Which of the following best classifies a quadrilateral with coordinates A(2,6), B(5, 1), C(10, 4), and D(7,9)?
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The area under a particular normal curve between 6 and 8 is 0.695. A normally distributed variable has the same mean and standar
TiliK225 [7]

Answer:

69.5%

Step-by-step explanation:

A feature of the normal distribution is that this is completely determined by its mean and standard deviation, therefore, if two normal curves have the same mean and standard deviation we can be sure that they are the same normal curve. Then, the probability of getting a value of the normally distributed variable between 6 and 8 is 0.695. In practice we can say that if we get a large sample of observations of the variable, then, the percentage of all possible observations of the variable that lie between 6 and 8 is 100(0.695)% = 69.5%.

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