On average, a textbook author makes 1 word-processing error per page on the first draft of her textbook. (a) What is the probability that on the next page she will make 2 or more errors? (b) What is the probability that a randomly selected page is error free? Click here to view the table of Poisson probability sums. (a) The probability that a page has at least 2 errors is (Round to four decimal places as needed.)

A committee of 4 is being formed randomly from the employees at a school: 6 administrators, 38 teachers, and 5 staff. What is the probability that all 4 members are administrators? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

In order to stay alert at work, an employee set a timer to go off randomly sometime within 40 minutes. What is the probability the timer will go off at exactly 8.25 minutes?

The accompanying table shows the numbers of male and female students in a particular country who received bachelor's degrees in business in a recent year. Complete parts (a) and (b) below. Click the icon to view the data on business degrees. (a) Find the probability that a randomly selected student is male, given that the student received a business degree. The probability that a randomly selected student is male, given that the student received a business degree, is (Round to three decimal places as needed.) (b) Find the probability that a randomly selected student received a business degree, given that the student is female. The probability that a randomly selected student received a business degree, given that the student is female, is (Round to three decimal places as needed.) Business graduates Business degrees Nonbusiness degrees Total Male 192,167 616,454 808,621 1,056,907 1,865,528 Female 173,249 883,658 Total 365,416 1,500,112

A coin is weighted in such a way that it lands "heads side up" 70% of the time. The coin is to be flipped until there are exactly 5 flips that land "heads side up". What is the probability that the 5th "heads side up" occurs on the 8th toss? 25

Exhibit 5-10The probability that Pete will catch fish on a particular day when he goes fishing is 0.8. Pete is going fishing 3 days next week.   Refer to Exhibit 5-10. The expected number of days Pete will catch fish is?

Joe tosses a fair three-sided die 9 times. What is the probability he rolls all threes? If necessary, round to 4 decimal places.

Based on a survey, we assume that 59% of students have a pet. Suppose that there are 4 students sitting at a table. Find the probability of each of these events. Give each probability as a percentage rounded to two decimal places. (a) What is the probability that all 4 students have a pet? (b) What is the probability that none of the 4 students have a pet? % (c) What is the probability that at least one of the 4 students have a pet? % %

A class consists of 17 freshmen and 78 sophomores. If a student is randomly selected, what is the probability that the student is a sophomore? Enter your answer in fraction form (a/b) or as a decimal rounded to the nearest hundredths place