Women make up 24% of the science and engineering workforce. Use the normal approximation to the binomial distribution to find the probability that, in a random sample of 400 science and engineering employees, (a)more than 120 (>120)are women. (b)between 80 and 120(inclusive) are women. I know how to do A but not B. Please help and show the steps! Thank you
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.
Women make up 24% of the science and engineering workforce. Use the normal approximation to the binomial distribution to find the probability that, in a random sample of 400 science and engineering employees,
(a)more than 120 (>120)are women.
(b)between 80 and 120(inclusive) are women.
I know how to do A but not B. Please help and show the steps! Thank you
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