AnswersPBCSD_Grade_Forgiveness_1200330_Algebra 2_S2_2024Modeling with Exponential and Logarithmic Equations
Modeling with Exponential and Logarithmic Equations — Unit test Answers
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Emi computes the mean and variance for the population data set 87, 46, 90, 78, and 89. She finds the mean is 78. Her steps for finding the variance are shown below.What is the first error she made in computing the variance?
A
Emi failed to find the difference of 89 - 78 correctly.B
Emi divided by N - 1 instead of N.C
Emi evaluated (46 - 78)2 as -(32)2.D
Emi forgot to take the square root of -135.6.22
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For a standard normal distribution, which of the following expressions must always be equal to 1?
A
P (z less-than-or-equal-to a) minus P (negative a less-than-or-equal-to z less-than-or-equal-to z) minus P (z greater-than-or-equal-to a)
B
P (z less-than-or-equal-to a) minus P (negative a less-than-or-equal-to z less-than-or-equal-to z) + P (z greater-than-or-equal-to a)
C
P (z less-than-or-equal-to a) + P (negative a less-than-or-equal-to z less-than-or-equal-to z) minus P (z greater-than-or-equal-to a)
D
P (z less-than-or-equal-to a) + P (negative a less-than-or-equal-to z less-than-or-equal-to z) + P (z greater-than-or-equal-to a)
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The mean of a set of credit scores is and . Which statement must be true about z694?
A
z694 is within 1 standard deviation of the mean.B
z694 is between 1 and 2 standard deviations of the mean.C
z694 is between 2 and 3 standard deviations of the mean.D
z694 is more than 3 standard deviations of the mean.
25
Which measure would be the most appropriate to describe the center of the data in the histogram below?
A
meanB
rangeC
medianD
interquartile rangeDid you find these answers helpful?
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