Question
In: Statistics and Probability
The life spans of a species of fruit flies have a bell shaped distribution with a...
- The life spans of a species of fruit flies have a bell shaped distribution with a mean of 33 days and a standard deviation of 4 days.
- The life spans of three randomly selected tires are 34, 30, and 42 days. Find the z-score for these life-spans and specify if any of the life spans are unusual.
- The life spans of three fruit flies are 29, 41, and 25 days. Use the empirical rule to determine the percentile rank of each life span.
- If a sample of 40 fruit flies is studied, how many fruit flies would have a life span between 25 and 41 days according to Chebychev’s theorem.
Solutions
orchestra answered 2 years agoRelated Solutions
The life spans of a species of fruit fly have a bell-shaped distribution, with a mean...
The life spans of a species of fruit fly have a bell-shaped
distribution, with a mean of 34 days and a standard deviation of 4
days. (a) The life spans of three randomly selected fruit flies
are 36 days, 31 days, and 46 days. Find the z-score that
corresponds to each life span. Determine whether any of these life
spans are unusual. (b) The life spans of three randomly selected
fruit flies are 26 days, 30 days, and 46 days....
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of 100 and a standard deviation of 17. Use the empirical rule
to determine the following. (a) What percentage of people has an
IQ score between 49 and 151? (b) What percentage of people has an
IQ score less than 83 or greater than 117? (c) What percentage of
people has an IQ score greater than 151?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
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 88 and 112? (b) What percentage of people has an
IQ score less than 76 or greater than 124? (c) What percentage of
people has an IQ score greater than 136?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of 100 and a standard deviation of 15. Use the empirical rule
to determine the following.
(a) What percentage of people has an IQ score between 70 and
130?
(b) What percentage of people has an IQ score less than 55 or
greater than 145?
(c) What percentage of people has an IQ score greater than 115?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of
100
and a standard deviation of
13
Use the empirical rule to determine the following.
(a) What percentage of people has an IQ score between
87
and
113?
(b) What percentage of people has an IQ score less than
74
or greater than
126?
(c) What percentage of people has an IQ score greater than
126?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of 100 and a standard deviation of 19. Use the empirical rule
to determine the following. (a) What percentage of people has an
IQ score between 62 and 138? (b) What percentage of people has an
IQ score less than 43 or greater than 157? (c) What percentage of
people has an IQ score greater than 138? (a) 95% (Type an
integer or a decimal.)
Scores of an IQ test have a bell-shaped distribution with a mean of 100100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of
100100 and a standard deviation of1919.
Use the empirical rule to determine the following.
(a) What percentage of people has an IQ score between 6262
and138138?
(b) What percentage of people has an IQ score less than4343or
greater than157157?
(c) What percentage of people has an IQ score greater than
138138?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of 100 and a standard deviation of 13.
Use the empirical rule to determine the following.
(a) What percentage of people has an IQ score between 87 and
113?
(b) What percentage of people has an IQ score less than 87 or
greater than 113?
(c) What percentage of people has an IQ score greater than
139?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of 100 and a standard deviation of 18. 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 64 or greater than 136? (c) What percentage of
people has an IQ score greater than 154?
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of 100 and a standard deviation of 13. Use the empirical rule
to determine the following.
(a) What percentage of people has an IQ score between 61 and
139?
(b) What percentage of people has an IQ score less than 74 or
greater than 126?
(c) What percentage of people has an IQ score greater than 113?
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