in 2014, 85 percent of households in the united states had a computer. for a randomly selected sample of 200 households in 2014, let the random variable cc represent the number of households in the sample that had a computer. what are the mean and standard deviation of cc ?

standarddeviationis 5.05 households, while themeanis 170 households.## What is mean?

mean(also known as thearithmeticmean, which differs from the geometric mean) of a dataset. The term “average” is frequently used to describe this measure ofcentraltendency.## What is standard deviation?

standarddeviation is a statistic that expresses how muchvarianceor dispersion there is in a group of numbers. While a high standard deviation suggests that the values are dispersed throughout a larger range, a low standarddeviationsuggests that the values tend to be near to the established mean.meanis 170 households, and thestandarddeviationis 5.05 households.mean,