Answers

1. The probability that the charity chosen is not a multiple of 12 is 74/80.

   According to the statement

   we have given that the auction are numbered 1 through 80. and we have to find the probability that the charity chosen is not a multiple of 12.

   So, For this purpose, we know that the

   The total numbers given is 80.

   Then we know the multiples of 12 are:

   12,24,36,48,60,72.

   So, there are 6 numbers are multiple of 12 from 1 to 80.

   SO, The numbers which are not multiple of 12 are :

   80 – 6 = 74.

   the probability that the charity chosen is not a multiple of 12 is 74/80.

   So, The probability that the charity chosen is not a multiple of 12 is 74/80.

   Learn more about probability here

   https://brainly.com/question/25870256

   #SPJ4

   Reply