Question
In: Statistics and Probability
1. Suppose that the national average for the math portion of the College Board's SAT is...
1. Suppose that the national average for the math portion of the College Board's SAT is 528. The College Board periodically rescales the test scores such that the standard deviation is approximately 100. Answer the following questions using a bell-shaped distribution and the empirical rule for the math test scores.
If required, round your answers to two decimal places. If your answer is negative use “minus sign”.
| (a) | What percentage of students have an SAT math score greater than 628? |
| % | |
| (b) | What percentage of students have an SAT math score greater than 728? |
| % | |
| (c) | What percentage of students have an SAT math score between 428 and 528? |
| % | |
| (d) | What is the z-score for student with an SAT math score of 630? |
| (e) | What is the z-score for a student with an SAT math score of 395? |
Solutions
Expert Solution
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orchestra answered 2 years agoRelated Solutions
Suppose that the national average for the math portion of the College Board's SAT is 548....
Suppose that the national average for the math portion of the
College Board's SAT is 548. The College Board periodically rescales
the test scores such that the standard deviation is approximately
100. Answer the following questions using a bell-shaped
distribution and the empirical rule for the math test scores.
If required, round your answers to two decimal places.
(a)
What percentage of students have an SAT math score greater than
648?
%
(b)
What percentage of students have an SAT...
Suppose that the national average for the math portion of the College Board's SAT is 535....
Suppose that the national average for the math portion of the
College Board's SAT is 535. The College Board periodically rescales
the test scores such that the standard deviation is approximately
75. Answer the following questions using a bell-shaped distribution
and the empirical rule for the math test scores. If required, round
your answers to two decimal places.
(a) What percentage of students have an SAT math score greater
than 610? ______%
(b) What percentage of students have an SAT...
Suppose that the national average for the math portion of the College Board's SAT is 516....
Suppose that the national average for the math portion of the
College Board's SAT is 516. The College Board periodically rescales
the test scores such that the standard deviation is approximately
100. Answer the following questions using a bell-shaped
distribution and the empirical rule for the math test scores.
If required, round your answers to two decimal places.
(a)
What percentage of students have an
SAT math score greater than 616?
%
(b)
What percentage of students have an
SAT...
Suppose that the national average for the math portion of the College Board's SAT is 531....
Suppose that the national average for the math portion of the
College Board's SAT is 531. The College Board periodically rescales
the test scores such that the standard deviation is approximately
100. Answer the following questions using a bell-shaped
distribution and the empirical rule for the math test scores. If
required, round your answers to two decimal places.
(a) What percentage of students have an SAT math score greater
than 631?
(b) What percentage of students have an SAT math...
Suppose that the national average for the math portion of the College Board's SAT is 520....
Suppose that the national average for the math portion of the
College Board's SAT is 520. The College Board periodically rescales
the test scores such that the standard deviation is approximately
75. Answer the following questions using a bell-shaped distribution
and the empirical rule for the math test scores. If required, round
your answers to two decimal places.
(a) What percentage of students have an SAT math score greater
than 595?
(b) What percentage of students have an SAT math...
Suppose that the national average for the math portion of the College Board's SAT is 538....
Suppose that the national average for the math portion of the
College Board's SAT is 538. The College Board periodically rescales
the test scores such that the standard deviation is approximately
100. Answer the following questions using a bell-shaped
distribution and the empirical rule for the math test scores.
If required, round your answers to two decimal places.
(a)
What percentage of students have an SAT math score greater than
638?
%
(b)
What percentage of students have an SAT...
Suppose that the national average for the math portion of the College Board's SAT is 513....
Suppose that the national average for the math portion of the
College Board's SAT is 513. The College Board periodically rescales
the test scores such that the standard deviation is approximately
75. Answer the following questions using a bell-shaped distribution
and the empirical rule for the math test scores.
If required, round your answers to two decimal places.
(a) What percentage of students have an SAT math score greater
than 588?
___ %
(b) What percentage of students have an...
Suppose that the national average for the math portion of the College Board's SAT is 518....
Suppose that the national average for the math portion of the
College Board's SAT is 518. The College Board periodically rescales
the test scores such that the standard deviation is approximately
100. Answer the following questions using a bell-shaped
distribution and the empirical rule for the math test scores.
If required, round your answers to two decimal places.
(a)
What percentage of students have an SAT math score greater than
618?
%
(b)
What percentage of students have an SAT...
Suppose that the national average for the math portion of the College Board's SAT is 518....
Suppose that the national average for the math portion of the
College Board's SAT is 518. The College Board periodically rescales
the test scores such that the standard deviation is approximately
50. Answer the following questions using a bell-shaped distribution
and the empirical rule for the math test scores. If required, round
your answers to two decimal places. (a) What percentage of students
have an SAT math score greater than 568? % (b) What percentage of
students have an SAT...
Problem 2-23 Suppose that the national average for the math portion of the College Board's SAT...
Problem 2-23
Suppose that the national average for the math portion of the
College Board's SAT is 525. The College Board periodically rescales
the test scores such that the standard deviation is approximately
100. Answer the following questions using a bell-shaped
distribution and the empirical rule for the math test scores.
If required, round your answers to two decimal places.
(a)
What percentage of students have an SAT math score greater than
625?
%
(b)
What percentage of students have...
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