Mathematics, 18.07.2020 20:01 kornut7316
A company that produces DVD drives has a 6% defective rate. Let X represent the number of defectives in a random sample of 57 of their drives.
Required:
a. What is the probability the sample will containexactly 2 defective drives? Give your answer to four decimalplaces.
b. What is the probability the sample will containmore than 2 defective drives? Give your answer to four decimalplaces.
c. What is the probability the sample will containless than 2 defective drives? Give your answer to four decimalplaces.
d. What is the expected number of defective drivesin the sample? Give your answer to two decimal places.
e. What is the variance of the number of defectivedrives in the sample? Give your answer to four decimalplaces.
f. What is the standard deviation of the number ofdefective drives in the sample? Give your answer to four decimalplaces.
g. Each defective drive costs the company 15dollars. What is the expected cost to the company for the defectivedrives in the sample? Give your answer to two decimalplaces.
h. Each defective drive costs the company 15dollars. What is the standard deviation of the cost to the companyfor the defective drives in the sample? Give your answer to fourdecimal places.
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 13:10
An alien has just landed from the planet, iksnimak. he would like to leam how to add two fractions when thedenominators are the same. write a paragraph that explains to our alien friend, in your own words, the detailsabout how to add the fractions, how to change the result to a mixed number, and how to reduce the fractionpart. use this problem as your example: the two fractions are 5/8 & 7/8
Answers: 1
Mathematics, 22.06.2019 01:30
One side of a rectangle is 7 centimeters shorter than six times the other side. find the length of the longer side if we also know that the perimeter of the rectangle is 266 centimeters.
Answers: 2
Mathematics, 22.06.2019 03:30
Aking and his army will attempt to capture a fortress. the left and right flanks break off from the main group to attack the west and east guard towers. suppose the left flank has a 60% chance of success and the right flank has a 75% chance of success, independently of one another. if both flanks capture their respective targets, then the king has a 98% chance of successfully taking the fort. if, however, only the left flank captures its tower, the king has an 80% chance of success; if only the right flank succeeds, the king has a 50% chance. if both flanks fail, then the king's chance of capturing the fort drops to 20%. it turns out the king captures the fort. what is the probability that one, and only one, flank was successful (either the left, or the right, but not both)? (round your answer to 3 decimal places)
Answers: 2
You know the right answer?
A company that produces DVD drives has a 6% defective rate. Let X represent the number of defectives...
Questions
Mathematics, 07.12.2020 07:10
Mathematics, 07.12.2020 07:10
Mathematics, 07.12.2020 07:10
English, 07.12.2020 07:10
Mathematics, 07.12.2020 07:10
History, 07.12.2020 07:10
Mathematics, 07.12.2020 07:10
Social Studies, 07.12.2020 07:10
Mathematics, 07.12.2020 07:10
Physics, 07.12.2020 07:10
Mathematics, 07.12.2020 07:10
Mathematics, 07.12.2020 07:10
Mathematics, 07.12.2020 07:10
