Consumer Banker Association released a report showing the lengths of automobile leases for new automobiles. The results are as follows. Lease Length in Months 13-24 25-36 37-48 49-60 Mare than 60 Percent of Leases 10.9% 38.8% 29.2% 20.8% 0.3% (a) Use the midpoint of each class, and call the midpoint of the last class 66.5 months, for purposes of computing the expected lease term. Also find the standard deviation of the distribution. (Round your answers to two decimal places.) expected lease term months standard deviation

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Consumer Banker Association released a report showing the lengths of automobile leases for new automobiles. The results are as follows.
Lease Length in Months
13-24
25-36
37-48
49-60
Mare than 60
Percent of Leases
10.9%
38.8%
29.2%
20.8%
0.3%
(a) Use the midpoint of each class, and call the midpoint of the last class 66.5 months, for purposes of computing the expected lease term. Also find the standard
deviation of the distribution. (Round your answers to two decimal places.)
expected lease term
months
standard deviation
Transcribed Image Text:Consumer Banker Association released a report showing the lengths of automobile leases for new automobiles. The results are as follows. Lease Length in Months 13-24 25-36 37-48 49-60 Mare than 60 Percent of Leases 10.9% 38.8% 29.2% 20.8% 0.3% (a) Use the midpoint of each class, and call the midpoint of the last class 66.5 months, for purposes of computing the expected lease term. Also find the standard deviation of the distribution. (Round your answers to two decimal places.) expected lease term months standard deviation
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