Question

Suppose that IQ scores have a bell-shaped distribution with a mean of 96 and a standard deviation of 12. Using the empirical rule, what percentage of IQ scores are less than 120? Please do not round your answer.

Answer #1

Suppose that IQ scores have a bell-shaped distribution with a
mean of 98 and a standard deviation of 17. Using the empirical
rule, what percentage of IQ scores are greater than 115? Please do
not round your answer.

Suppose that IQ scores have a bell-shaped distribution with a
mean of 99 99 and a standard deviation of 13 13 . Using the
empirical rule, what percentage of IQ scores are less than 86 86 ?
Please do not round your answer.

Suppose that IQ scores have a bell-shaped distribution with a
mean of 103 and a standard deviation of 15. Using the empirical
rule, what percentage of IQ scores are at least 133? Please do not
round your answer.

Suppose that IQ scores have a bell-shaped distribution with a
mean of 105 and a standard deviation of 14. Using the empirical
rule, what percentage of IQ scores are at least 77 ? Please do not
round your answer.

Suppose that IQ scores have a bell-shaped distribution with a mean
of 101 and a standard deviation of 14. Using the emphirical rule,
what percentage of IQ scores are at least 143? Do not round your
answer

Suppose that IQ scores have a bell-shaped distribution with a
mean of 104 and a standard deviation of 18. Using the empirical
rule, what percentage of IQ scores are between 50 and 158?

Scores of an IQ test have a bell-shaped distribution with a
mean of
100
and a standard deviation of
20.
Use the empirical rule to determine the following.
(a) What percentage of people has an IQ score between
80
and
120
(b) What percentage of people has an IQ score less than
40
or greater than
160
(c) What percentage of people has an IQ score greater than
120

Scores of an IQ test have a bell-shaped distribution with a
mean of 100
and a standard deviation of 20.
Use the empirical rule to determine the following.
(a) What percentage of people has an IQ score between 40 and
160?
(b) What percentage of people has an IQ score less than 40 or
greater than 160?
(c) What percentage of people has an IQ score greater than
120?

Scores of an IQ test have a bell-shaped distribution with a
mean of 100 and a standard deviation of 20. Use the empirical rule
to determine the following.
(a) What percentage of people has an IQ score between 40 and
160?
(b) What percentage of people has an IQ score less than 80 or
greater than 120?
(c) What percentage of people has an IQ score greater than
160?

Scores of an IQ test have a bell-shaped distribution with a
mean of
100
and a standard deviation of
12
Use the empirical rule to determine the following.(a) What
percentage of people has an IQ score between
64
and
136?
(b) What percentage of people has an IQ score less than
88
or greater than
112?
(c) What percentage of people has an IQ score greater than
136?

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