Name: 21. The average number of calls received by a customer service department in a 10-minute period is
4.
a.
b.
What is the probability that between 10:00 and 10:20 the switchboard will receive exactly 8
calls?
What is the probability that between 10:00 and 10:05 the switchboard will receive fewer than
2 calls?
What is the probability that between 10:00 and 10:05 the switchboard will receive more than
3 calls?
C.

The temperature of chicken soup is 192.7°f. as it cools, the temperature of the soup decreases 2.3°f per minute. what is the temperature in degrees fahrenheit of the soup after 25 minutes? a. 27.3°f b. 57.5°f c. 135.2°f d. 250.2°f

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Apoll is being conducted at a mall nothingto obtain a sample of the population of an entire country. what is the frame for this type of​ sampling? who would be excluded from the survey and how might this affect the results of the​ survey? what is the frame for this type of​ sampling? a. the frame is people who need new clothes. b. the frame is people who shop at the mall. c. the frame is people who like to shop. d. the frame is the entire population of the country. who would be excluded from the survey and how might this affect the results of the​ survey? a. any person that does not need new clothes is excluded. this could result in sampling bias due to undercoverage. b. any person who does not shop at the mall is excluded. this could result in sampling bias due to undercoverage. c. any person who does not shop at the mall is excluded. this could result in nonresponse bias due to people not participating in the poll. d. there is nobody that is being excluded from the survey.