Assume that 29% of all children in urban schools fail to graduate from high school. An SRS of 400 children is taken in the metropolitan Newark, NJ area. b) What is the mean and standard deviation of the sampling distribution of pˆ ? c) What is the approximate probability that the sample proportion of children in urban schools failing tograduate is less than 28%?
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.
Assume that 29% of all children in urban schools fail to graduate from high school. An SRS of 400 children is taken in the metropolitan Newark, NJ area.
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b) What is the
mean and standard deviation of the sampling distribution of pˆ ? -
c) What is the approximate
probability that the sample proportion of children in urban schools failing tograduate is less than 28%?
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