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Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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A survey found that women's heights are normally distributed with mean 63.8 in and standard deviation 2.4 in. A branch of the military requires women's heights to be
between 58 in and 80 in.
a. Find the percentage of women meeting the height requirement. Are many women being denied the opportunity to join this branch of the military because they are
too short or too tall?
b. If this branch of the military changes the height requirements so that all women are eligible except the shortest 1% and the tallest 2%, what are the new height
requirements?
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ch
Click to view page 1 of the table. Click to view page 2 of the table.
a. The percentage of women who meet the height requirement is %.
(Round to two decimal places as needed.)
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This course (MATH-160-3458, Tran, Falil 2020) is based on Triola: Elementary Statistics, 13e with Integratea Review
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According to the sum, a survey finds that women's height is normally distributed with mean 63.8 and s.d. 2.4 inches.
So,
and Z=
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