2) Assume that aduits have 1Q scores that are normaly distributed with a mean of u = T00 and a standard đeviation of o =20. (a) Let x be the IQ score. Choose the correct answer representing the probability that a randomly selected adult has an IQ between 83 and 117. A. P{x>83)+7{x

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2) Assume that aduits have 1Q scores that are normaly distributed with a mean of u = T00
and a standard đeviation of o =20.
(a) Let x be the IQ score. Choose the correct answer representing the probability that a
randomly selected adult has an IQ between 83 and 117.
A. P{x>83)+7{x<ii7}
B. P(83 <x< 17)
C. P(x=83)+P(x = 117)
%3D
Answer:
(b) Find the probability that a randomly selected adult has an IQ between 83 and 117.
you are using the z Table, show work for the standardizing process. If you are using
the graphing calculator, write down the command used as shown on your calculato
Round the answer to four decimal places.
Transcribed Image Text:2) Assume that aduits have 1Q scores that are normaly distributed with a mean of u = T00 and a standard đeviation of o =20. (a) Let x be the IQ score. Choose the correct answer representing the probability that a randomly selected adult has an IQ between 83 and 117. A. P{x>83)+7{x<ii7} B. P(83 <x< 17) C. P(x=83)+P(x = 117) %3D Answer: (b) Find the probability that a randomly selected adult has an IQ between 83 and 117. you are using the z Table, show work for the standardizing process. If you are using the graphing calculator, write down the command used as shown on your calculato Round the answer to four decimal places.
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