To boost holiday sales, a jewelry store in bismarck, north dakota, is advertising the following promotion: "if more than seven inches of cumulative snow fall on december 24, 25, 26, 27, and 28, you get your money back on all purchases made on december 17." to analyze this promotion, the store manager has collected data and determined that snowfall over this 5-day period in december is normally distributed with an average of 6 inches and standard deviation of 0.559 inches. what is the probability that the store will have to refund the money to its december 17 customers? if required, round your answer to three decimal places.

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

In 2000, for a certain region, 27.1% of incoming college freshman characterized their political views as liberal, 23.1% as moderate, and 49.8% as conservative. for this year, a random sample of 400 incoming college freshman yielded the frequency distribution for political views shown below. a. determine the mode of the data. b. decide whether it would be appropriate to use either the mean or the median as a measure of center. explain your answer. political view frequency liberal 118 moderate 98 conservative 184 a. choose the correct answer below. select all that apply. a. the mode is moderate. b. the mode is liberal. c. the mode is conservative. d. there is no mode.