# Question: A company has recently replaced their e mail spam filter because

A company has recently replaced their e-mail spam filter because investigations had found that the volume of spam e-mail was interrupting productive work on about 15 % of workdays. To see how bad the situation was, calculate the probability that during a 5-day work week, e-mail spam would interrupt work:

a) On Monday and again on Tuesday?

b) For the first time on Thursday?

c) Every day?

d) At least once during the week?

a) On Monday and again on Tuesday?

b) For the first time on Thursday?

c) Every day?

d) At least once during the week?

**View Solution:**## Answer to relevant Questions

The technical support desk at a college has set up a special service for tablets. A survey shows that 54% of tablets on campus run Apple’s iOS, 43% run Google’s Android OS, and 3% run Microsoft’s Windows. Assuming that ...The General Social Survey, run annually, asked respondents “Do you have in your home (or garage) any guns or revolvers?” The responses are given in the table. (sda.berkeley.edu/cgi-bin/hsda?harcsda+gssl0) a) If we select ...A 2011 Mintel report on coffeehouses asked consumers if they were spending more time in coffeehouses. The table below gives the responses classified by age: a) What is the probability that a randomly selected respondent is ...In the real estate research described in Exercise 33, 64% of homes for sale have garages, 21% have swimming pools, and 17% have both features. a) What is the probability that a home for sale has a garage, but not a pool? b) ...Given independent random variables, X and Y, with means and standard deviations as shown, find the mean and standard deviation of each of the variables in parts a to d. a) X – 20 b) 0.5T c) X + Y d) X-YPost your question