Math 227 - Statistics » Fall 2020 » Sec 7.1 Quiz
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Question #1
Find the area under the standard normal curve that lies between z= -1 and z = 1.5
A.
0.7771
B.
0.7691
C.
0.7745
D.
0.7751
Question #2
Find the z-score for which the area to the right is 0.92
A.
-1.02
B.
-0.99
C.
-1.41
D.
-1.09
Question #3
Find the z-scores that bound the middle 74% of the area under the standard normal curve.
A.
-1.17, 1.17
B.
-1.16, 1.16
C.
-0.16, 0.16
D.
-1.13, 1.13
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