homework help

[BB1]

A certain typing agency employs two typists. The average number of errors per article is when typed by the first typist and when typed by the second. If your article is equally likely to be typed by either typist, find the probability that it will have no errors.

Can someone help me get this laid out.

 

[tkhunny]

A certain typing agency employs two typists. The average number of errors per article is when typed by the first typist and when typed by the second. If your article is equally likely to be typed by either typist, find the probability that it will have no errors.

Can someone help me get this laid out.

Missing quite a bit of information.

1) What is the probability that each typist will be assigned the task? 50% each maybe?
2) I'm thinking "is" and "when" should not be next to each other. There should be a whole number in there.
3) What are we to assume about the distribution of errors? Poisson?