babygirlqueen5588
13.07.2019 •
Mathematics
Suppose that the national average for the math portion of the college board's sat is 532. 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 632?
%
(b) what percentage of students have an sat math score greater than 732?
%
(c) what percentage of students have an sat math score between 432 and 532?
%
(d) what is the z-score for student with an sat math score of 620?
(e) what is the z-score for a student with an sat math score of 405?
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Ответ:
hold on ill have more in a bit