According to a recent poll conducted by a leading research firm, 25% of Italians have confidence in banks. You randomly interview 5 Italians . 1. What is the probability that 1 or fewer have confidence in banks? ( Round the final answer to four decimal places.) The number of bank customers who seek assistance with their banking at a local branch average 1 per day. 2. What is the probability that no bank customers seek assistance tomorrow? (Round the final answer to four decimal places. )
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.
According to a recent poll conducted by a leading research firm, 25% of Italians have confidence in banks. You randomly interview 5 Italians .
1. What is the
The number of bank customers who seek assistance with their banking at a local branch average 1 per day.
2. What is the probability that no bank customers seek assistance tomorrow?
(Round the final answer to four decimal places. )
From the given information,
Consider, p be the probability that Italians have confidence in banks =0.25
Sample size (n) =5
Thus, the required probabilities can be computed as:
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