deviations above and below th- can (z-scores), ana . ** under that with the actual values for this problem. What percent of drive. cxpect to have speeds below 199.2 mph ? 2 Show all work. 3 What is the area under the curve to tne left of a speed of 170.4mph ? Show all work.

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Ch 8 FRQ
The distribution of average speeds of the top 53 drivers in NASCAR is
roughly symmetric, unimodal, and bell-shaped, with a mean of 184.8 mph and a standard
deviation of 7.2 mph.
1
In the space above, ara..
lines at the mean and each whole number -
curve, from z=-3 to z=+3. Draw vertical
rd deviation above and below the mean.
nw with the number of standard
* under that with the actual
Norm.
Write two rows of numbers under +
deviations above and below th-
we line; o..
can (z-scores), ana .
values for this problem.
What percent of drive.
cxpect to have speeds below 199.2 mph ?
2
Show all work.
3
What is the area under the curve to tne left of a speed of 170.4mph ? Show
all work.
Transcribed Image Text:Ch 8 FRQ The distribution of average speeds of the top 53 drivers in NASCAR is roughly symmetric, unimodal, and bell-shaped, with a mean of 184.8 mph and a standard deviation of 7.2 mph. 1 In the space above, ara.. lines at the mean and each whole number - curve, from z=-3 to z=+3. Draw vertical rd deviation above and below the mean. nw with the number of standard * under that with the actual Norm. Write two rows of numbers under + deviations above and below th- we line; o.. can (z-scores), ana . values for this problem. What percent of drive. cxpect to have speeds below 199.2 mph ? 2 Show all work. 3 What is the area under the curve to tne left of a speed of 170.4mph ? Show all work.
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