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Hog95 Hog95
wrote...
Posts: 2983
10 years ago
Suppose adults in a particular town drive a mean of 65 mph with a standard deviation of 15 mph. Using the normal curve table,
a.   What percentage of adults drive below 35 mph?
b.   What percentage of adults drive below 68 mph or above 85 mph?
c.   What percentage of adults drive between 56 and 80 mph?
d.   At what speed does someone need to drive to be included in the top 10%?
e.   At what speed does someone need to drive to be included in the bottom 25%?
f.   Explain your answers to a person who is familiar with mean, standard deviation, and Z scores, but not with normal curve percentages.
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Answer accepted by topic starter
padrepadre
wrote...
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10 years ago
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Hog95 Author
wrote...
10 years ago
Thank you so much for the reply. Your answer makes a lot of sense.
wrote...
4 years ago
Here's my approach Slight Smile
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wrote...
4 years ago
Thanks
wrote...
4 years ago
awesome
wrote...
4 years ago
thankyou
wrote...
3 years ago
Thank you!
wrote...
A year ago
thank you
wrote...
A year ago
Thank you!
wrote...
2 months ago
Thx
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