Solved

The Intelligence Quotient (IQ)test Scores Are Normally Distributed with a Mean

Question 55

Multiple Choice

The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a standard deviation of 15.Given a class with 25 students,what is the probability that the class' average IQ score is between 85 and 115?


A) 0.4987
B) 3.00
C) 0.0026
D) 0.9974

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q1: As the size of the sample increases,

Q4: What type of sampling is it when

Q21: For a population that is not normally

Q50: Fish and game wardens estimate the average

Q51: The central limit theorem implies that for

Q53: The central limit theorem implies that for

Q54: When systematic random sampling is used,the central

Q60: Sampling error is defined as<br>A)( <img

Q99: The Intelligence Quotient (IQ) test scores are

Q103: How is the Central Limit Theorem helpful