A copier cost $200 for each repair call, after 3 callsthey are free (For example 1 call= $200, 3 or more calls = $600).The following chart shows the probability of how many repair callsyou will have in 1 year. Questions 36-37
pls show work
# Repairs | 0 | 1 | 2 | 3 or more |
Probability | 0.30 | 0.41 | 0.20 | 0.10 |
36. What is the expected repair call costs for 1year?
$150.00
$200.00
$206.00
$220.00
$300.00
37. What is the probability that one repair call costwill be more than $200 for 1 year?
.70
.40
.30
.20
.10
38. The daily high temperature of Los Angeles in themonth of December is normally distributed with a mean of 58 degreesFahrenheit and a standard deviation of 2 degrees fahrenheit. Whatpercent of high temperatures are between 60 and 64?
68%
84%
15.85%
16%
None of the above
39. If P(A) = 0.38, P(B) = 0.83, and P (A ? B) = 0.57;then P(A U B) =
1.21
0.64
0.78
1.78
None of the above
