Question: Computer training. Macintosh users make up about 5% of all computer users. A computer training school that wants to attract Macintosh users mails an advertising

Computer training. Macintosh users make up about 5%

of all computer users. A computer training school that wants to attract Macintosh users mails an advertising flyer to 25,000 computer users.

(a) If the mailing list can be considered a random sample of the population, what is the mean number of Macintosh users who will receive the flyer?

(b) What is the probability that at least 1245 Macintosh users will receive the flyer?

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