The amounts due on electricity bills for all households in a city have a skewed probability distribution with a mean of $154 and a standard deviation of $33. Find the probability that the mean amount due on electricity bills for a random sample of 67 households selected from this city will be A) between $145 and $149 b) within $7 of the population mean c) more than the population mean by at least $4
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.
The amounts due on electricity bills for all households in a city have a skewed
A) between $145 and $149
b) within $7 of the population mean
c) more than the population mean by at least $4
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