On-Time Flights A certain flight arrives on time 87 percent of the time. Suppose 149 flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that (a) exactly 127 flights are on time. (b) at least 127 flights are on time. (c) fewer than 134 flights are on time. (d) between 134 and 142, inclusive are on time.
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.
21. On-Time Flights A certain flight arrives on time 87 percent of the time. Suppose 149 flights are randomly selected. Use
the normal approximation to the binomial to approximate the probability that
(a) exactly 127 flights are on time.
(b) at least 127 flights are on time.
(c) fewer than 134 flights are on time.
(d) between 134 and 142, inclusive are on time.
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