Question 1

Find the Area under the Standard Normal Curve
-Find the area under the standard normal curve to the right of  z=−1.25z = - 1.25z=−1.25 .

Accepted Answer

A)    0.89440.89440.8944 
B)    0.58430.58430.5843 
C)    0.69780.69780.6978 
D)    0.71930.71930.7193E) None of the above
F) A) and D)

Question 2

Provide an appropriate response
-Suppose a uniform random variable can be used to describe the outcome of an experiment with the outcomes ranging from 10 to 70. What is the probability that this experiment results in an outcome less than 20

Accepted Answer

A)   0.17
B)   0.13
C)   0.22
D)   1E) C) and D)
F) None of the above

Question 3

Find z-scores for a Given Area
-Find the  zzz -scores for which  98%98 \%98%  of the distribution's area lies between  −z- z−z  and  zzz .

Accepted Answer

A)    (−2.33,2.33) ( - 2.33,2.33 ) (−2.33,2.33)  
B)    (−1.645,1.645) ( - 1.645,1.645 ) (−1.645,1.645)  
C)    (−1.96,1.96) ( - 1.96,1.96 ) (−1.96,1.96)  
D)    (−0.99,0.99) ( - 0.99,0.99 ) (−0.99,0.99) E) A) and B)
F) A) and C)

Exam 7: The Normal Probability Distribution

Find z-scores for a Given Area -Find the $z$ -scores for which $98 \%$ of the distribution's area lies between $- z$ and $z$ .

Correct Answer
verified

Provide an appropriate response -Suppose a uniform random variable can be used to describe the outcome of an experiment with the outcomes ranging from 10 to 70. What is the probability that this experiment results in an outcome less than 20

Correct Answer
verified

Find the Area under the Standard Normal Curve -Find the area under the standard normal curve to the right of $z = - 1.25$ .

Correct Answer
verified

Exam 7: The Normal Probability Distribution

Find z-scores for a Given Area -Find the zzz -scores for which 98%98 \%98% of the distribution's area lies between −z- z−z and zzz .

Correct AnswerverifiedShow Answer

Provide an appropriate response -Suppose a uniform random variable can be used to describe the outcome of an experiment with the outcomes ranging from 10 to 70. What is the probability that this experiment results in an outcome less than 20

Correct AnswerverifiedShow Answer

Find the Area under the Standard Normal Curve -Find the area under the standard normal curve to the right of z=−1.25z = - 1.25z=−1.25 .

Correct AnswerverifiedShow Answer

Find z-scores for a Given Area -Find the $z$ -scores for which $98 \%$ of the distribution's area lies between $- z$ and $z$ .

Correct Answer
verified

Correct Answer
verified

Find the Area under the Standard Normal Curve -Find the area under the standard normal curve to the right of $z = - 1.25$ .

Correct Answer
verified