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The mean IQ score of adults is 100, with a standard deviation of 15. Use the empirical rule to find the percentage of adults with scores between 70 and 130.

(Assume the data set has a bell-shaped distribution)

Question
Choose the correct answer below.

A.
95%

B.
99.7%

C.
68%

D.
100%

The mean IQ score of adults is 100 with a standard deviation of 15 Use the empirical rule to find the percentage of adults with scores between 70 and 130 Assume class=


Answer :

TheEnderKingz

Answer:

95% of adults with scores between 70 and 130.


Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 100

Standard Deviation, σ = 15.

We are given that the distribution of IQ score is a bell shaped distribution that is a normal distribution.

Empirical Formula:

According to this rule approximately all the data lies within three standard deviations of mean for a normal distribution.

About 65% of data lies within one standard deviation of mean.


About 95% of data lies within two standard deviation of mean.


About 99.7% of data lies within three standard deviation of mean.

Thus, by Empirical rule, 95% of data lies within two standard deviation of mean, thus, 95% of adults with scores between 70 and 130.


Brainliest would be appreciated   :D

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