Use a sample n=1400 , p=0.20 and a 99% confidence level to construct a confidence interval estimate of the population proportion, p

Me figure out the process to determine x you appreciate it : )

What does the relationship between the mean and median reveal about the shape of the data

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60