Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Drive-thru Restaurant A B D Order Accurate 327 266 238 123 Order Not Accurate 40 59 34 11 If three different orders are selected, find the probability that they are all from restaurant A. The probability is: (Round to four decimal places as needed.)
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.
4.2/10
From the table we can see that there are total 327+266+238+123+40+59+34+11 = 1098 orders.
Out of them 327+40 = 367 are from restaurant A
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