1. The IQ scores of students listed below are from a SAMPLE...

1. The IQ scores of students listed below are from a SAMPLE of MATH 300 class.

IQ Scores

110

105

120

100

110

102

119

106

103

101

105

a. What is the mean IQ score? Round to the nearest whole number. (2.5 pts)

b. Compute the IQ scores within plus/minus one standard deviation? Two answers. Round to the nearest whole numbers. (2.5 pts).

c. Compute the IQ scores within plus/minus two standard deviation? Two answers. (2.5 pts).

2. Let X have a normal distribution with µ= 10 and standard deviation σ= 2. Transform X to the standard normal form Z and match the following probability statements:

a) P(X>14) 1) P(Z<-1)

b) P(X<8) 2) P(-2 < Z < 2)

c) P(6 < X < 14) 3) P(Z > 2)

a) is matched to ___________ (2.5 pts)

b) is matched to ___________ (2.5 pts)

c) is matched to ____________ (2.5 pts)

Math Statistics and Probability

Answer & Explanation

Solved by verified expert

Answered by vanajareddy0426 on coursehero.com

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