Question 4.4: Of all the new vehicles of a cet1ain model that are sold, 20...
Of all the new vehicles of a cet1ain model that are sold, 20% require repairs to be done under warranty during the first year of service. A particular dealership sells 14 such vehicles. What is the probability that fewer than five of them require warranty repairs?
Let X represent the number of vehicles that require warranty repairs. Then X ∼ Bin(14, 0.2).The probability that fewer than five vehicles require warranty repairs is P(X ≤ 4). We consult Table A.1 with n = 14, p = 0.2, and x = 4. We find that P(X ≤ 4) = 0.870.
Related Answered Questions
Question: 4.5
Verified Answer:
Let X represent the number of invoices in the samp...
Question: 4.34
Verified Answer:
Let X denote the number of hits on the website in ...
Question: 4.33
Verified Answer:
This situation is illustrated in Figure 4.21. Let ...
Question: 4.32
Verified Answer:
This situation is illustrated in Figure 4.20.Let X...
Question: 4.31
Verified Answer:
Let X_1 .... X_{64} be the ages of ...
Question: 4.30
Verified Answer:
The population mean number of flaws is μ = 0.66, a...
Question: 4.20
Verified Answer:
From the z table, the closest area to 0.4000 is 0....
Question: 4.19
Verified Answer:
Let X represent the lifetime of a randomly chosen ...
Question: 4.18
Verified Answer:
To answer this question, we use the z table in rev...
Question: 4.17
Verified Answer:
From the z table, the area to the left of z = 1.28...