Thirty percent of all customers who enter a store will make a purchase. Suppose that six customers enter the store and that these customers make independent purchase decisions. a Let x = the number of the six customers who will make a purchase. Write the binomial formula for this situation. b Use the binomial formula to calculate (a) The probability that exactly five customers make a purchase. (b)What is the probability of not shopping at all? (c) The probability that at least one customer makes a purchase.
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.
Thirty percent of all customers who enter a store will make a purchase. Suppose that six
customers enter the store and that these customers make independent purchase decisions.
a Let x = the number of the six customers who will make a purchase. Write the binomial formula
for this situation.
b Use the binomial formula to calculate
(a) The
(b)What is the probability of not shopping at all?
(c) The probability that at least one customer makes a purchase.
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