For a recent English exam,use the Normal model N(73,9.2) to find the score that represents the 30th percentile.
A) 82.2
B) 63.8
C) 77.8
D) 68.2
E) 61.2
Correct Answer:
Verified
Q67: z < 0.97
A)80.78%
B)82.35%
C)83.40%
D)16.60%
E)83.15%
Q68: the highest 86%
A)-1.08
B)0.8051
C)1.08
D)0.5557
E)-1.02
Q69: the highest 7%
A)-1.48
B)1.45
C)1.48
D)1.26
E)1.39
Q70: -0.55 < z < 0.55
A)41.76%
B)-90.00%
C)90.00%
D)-41.76%
E)43.57%
Q71: -0.73 < z < 2.27
A)76.47%
B)154.00%
C)48.84%
D)75.57%
E)22.11%
Q73: Based on the Normal model for snowfall
Q74: 0.7 < z < 1.98
A)-21.81%
B)21.75%
C)23.45%
D)173.41%
E)21.81%
Q75: -1.10 < z < -0.36
A)24.57%
B)-22.37%
C)22.37%
D)49.51%
E)22.39%
Q76: the highest 9%
A)-1.34
B)1.39
C)1.26
D)1.34
E)1.45
Q77: the middle 96%
A)0 to 2.05
B)-2.33 to 2.33
C)-3.00
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