Directions: Read, analyze, and solve the problems below. Show your complete
solutions.
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Mathematics, 07.05.2021 16:40 zitterkoph
Directions: Read, analyze, and solve the problems below. Show your complete
solutions.
1. There are 250 dogs at a dog show that weigh an average of 12 pounds
a standard deviation of 8 pounds. If 4 dogs are chosen at random, what is
the probability that the average weight is greater than 8 pounds?
2. The average number of pages in a novel is 326 with a standard deviation of 24
pages. If a sample of 50 novels is randomly chosen, what is the probability that
the average number of pages in these books is between 319 and 331?
3. The number of driving miles before a certain kind of tire begins to show wear is
on the average, 16,800 miles with a standard deviation of 3,300 miles.
a. What is the probability that the 36 tires will have an average of less than
16,000 miles until the tires begin to wear out?
b. What is the probability that the 36 tires will have an average of more than
18,000 miles until the tires begin to wear out?
Answers: 2
Mathematics, 21.06.2019 16:00, aahneise02
Write two subtraction equations that are equivalent to 5 + 12 = 17.
Answers: 2
Mathematics, 21.06.2019 16:10, lilyplant4289
The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.
Answers: 1
Mathematics, 21.06.2019 18:00, TGJuuzouSuzuya
!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?
Answers: 1
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