Question

PROBLEM 1. An automobile dealership recorded the number of cars sold daily for one week. These data had been used in calculating the probability distribution of daily sales (X) provided below. X P(X=x) 2 4 6 8 10 0.20 ? 0.25 0.15 0.05 Based on this probability distribution, answer the following questions. Question 1 (1 point): What is the probability of selling at least 4 cars daily? a) 0.35 b) 0.55 c) 0.80 d) None of the above Question 2 (1 point): How many cars does this dealership expect to sell daily? a) 6 cars b) 5 cars c) 7 cars d) None of the above Question 3 (2 points): What is the standard deviation of daily sales at this dealership? (Round your answer to 2 places after the decimal point). a) 2.24 cars b) 5 cars c) 6 cars d) 2.45 cars e) None of the above

          PROBLEM 1.
An automobile dealership recorded the number of cars sold daily for one week. These
data had been used in calculating the probability distribution of daily sales (X) provided
below.
X
P(X=x)
2
4
6
8
10
0.20
?
0.25
0.15
0.05
Based on this probability distribution, answer the following questions.
Question 1 (1 point):
What is the probability of selling at least 4 cars daily?
a) 0.35
b) 0.55
c) 0.80
d) None of the above
Question 2 (1 point):
How many cars does this dealership expect to sell daily?
a) 6 cars
b) 5 cars
c) 7 cars
d) None of the above
Question 3 (2 points):
What is the standard deviation of daily sales at this dealership? (Round your answer to 2
places after the decimal point).
a) 2.24 cars
b) 5 cars
c) 6 cars
d) 2.45 cars
e) None of the above

PROBLEM 1.
An automobile dealership recorded the number of cars sold daily for one week. These
data had been used in calculating the probability distribution of daily sales (X) provided
below.
X
P(X=x)
2
4
6
8
10
0.20
?
0.25
0.15
0.05
Based on this probability distribution, answer the following questions.
Question 1 (1 point):
What is the probability of selling at least 4 cars daily?
a) 0.35
b) 0.55
c) 0.80
d) None of the above
Question 2 (1 point):
How many cars does this dealership expect to sell daily?
a) 6 cars
b) 5 cars
c) 7 cars
d) None of the above
Question 3 (2 points):
What is the standard deviation of daily sales at this dealership? (Round your answer to 2
places after the decimal point).
a) 2.24 cars
b) 5 cars
c) 6 cars
d) 2.45 cars
e) None of the above

Added by Ivan W.

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