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The Essentials of Statistics 3rd Edition by Joseph Healey
Edition 3ISBN: 978-1111831585The Essentials of Statistics 3rd Edition by Joseph Healey
Edition 3ISBN: 978-1111831585 Exercise 6
If a distribution of test scores is normal, with a mean of 78 and a standard deviation of 11, what percentage of the area lies
a. below 60? __________
b. below 70? __________
c. below 80? __________
d. below 90? __________
e. between 60 and 65? _________
f. between 65 and 79? _________
g. between 70 and 95? _________
h. between 80 and 90? _________
i. above 99? __________
j. above 89? __________
k. above 75? __________
l. above 65? __________
a. below 60? __________
b. below 70? __________
c. below 80? __________
d. below 90? __________
e. between 60 and 65? _________
f. between 65 and 79? _________
g. between 70 and 95? _________
h. between 80 and 90? _________
i. above 99? __________
j. above 89? __________
k. above 75? __________
l. above 65? __________
Explanation
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From the given information,
Let the rand...
The Essentials of Statistics 3rd Edition by Joseph Healey
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