Based on a smartphone survey, assume that 56% of adults with smartphones use them in theaters. In a separate survey of 260 adults with smartphones, it is found that 142 use them in theaters. a. If the 56% rate is correct, find the probability of getting 142 or fewer smartphone owners who use them in theaters is____. Round to four decimal places as needed b. Is the result significantly low?
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.
Based on a smartphone survey, assume that 56% of adults with smartphones use them in theaters. In a separate survey of 260 adults with smartphones, it is found that 142 use them in theaters.
a. If the 56% rate is correct, find the probability of getting 142 or fewer smartphone owners who use them in theaters is____.
Round to four decimal places as needed
b. Is the result significantly low?
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