Belk Department Store Is Having a Special Sale This Weekend

Belk Department Store is having a special sale this weekend. Customers charging purchases of
More than $50 to the Belk credit card will be given a special Belk lottery card. The customer will
Scratch the card, which will indicate the amount to be taken off the total amount of purchase. Listed
Below is the amount of the prize and the percent of the time that amount will be deducted from the
Total amount of the purchase
Determine the mean and standard deviation of the prize amount.

A) Mean is $21, standard deviation is $16.09
B) Mean is $21, standard deviation is $710.50
C) Mean is $20, standard deviation is $25.00
D) Mean is $20, standard deviation is $26.66
E) Mean is $46.25, standard deviation is $710.50