1) Industry standards suggest that 13% of photocopying machinesrequire warranty service within the first year. Jensen Copying in VaughMills sold 41 photocopying machines last year. Compute the standard deviation of this probability distribution. Round your answer to the nearest whole number.

2)Adults were asked their gender and the number ofFacebookaccounts they used. The following table summarizes the results:

FacebookAccounts

Men Women

0 17 1

1 27 68

2 or more 31 37

Find the probability the person has no accountsormultiple accounts. Express your answer to the nearest whole percent.

3)The Canadian Cancer Society reports that 1 in 18 Canadians will get colon cancer in their lifetime. Cancer researchers have determined that the probability that someone has had colon cancer and will develop a secondary cancer is 2%. Given that the person has had colon cancer in the past, what is the probability they will develop a secondary cancer in their lifetime?Express your answer to the nearest whole percent.