Question

Industry standards suggest that 18% of new vehicles require
warranty service within the first year. Jones Nissan, sold 10
Nissans yesterday. **(Round the Mean answer to 2 decimal
places and the other answers to 4 decimal places.)**

**a.** What is the probability that none of these
vehicles requires warranty service?

Probability

**b.** What is the probability that exactly one of
these vehicles requires warranty service?

Probability

**c.** Determine the probability that exactly two
of these vehicles require warranty service.

Probability

**d.** What is the probability that less than three
of these vehicles require warranty service?

Probability

**e.** Compute the mean and standard deviation of
this probability distribution.

Mean µ = |

Answer #1

What is the probability that none of these vehicles requires warranty service?

n=10 and p=0.18

P (k=0) = 10C0 * (0.18)^0 * (1-0.18)^(10-0)

=1 *(0.18)^0 * (1-0.18)^(10-0) = **0.1374**

**b.** What is the probability that exactly one of
these vehicles requires warranty service?

P (k=1) = 10C1 * (0.18)^1 * (1-0.18)^(10-1)

=10* (0.18)^1 * (1-0.18)^(10-1) = **0.3017**

**c.** Determine the probability that exactly two
of these vehicles require warranty service.

P (k=2) = 10C2 * (0.18)^2 * (1-0.18)^(10-2)

=45* (0.18)^2 * (1-0.18)^(10-2) = **0.2980**

**d.** What is the probability that less than three
of these vehicles require warranty service?

P (k<3) = P(k=0) +P(k=1) +P(k=2) = 0.1374+0.3017+0.2980 =
**0.7371**

**e.** Compute the mean and standard deviation of
this probability distribution.

mean = 10*0.18 = **1.80**

standard deviation = square root(n * p * (1-p)) = square root(10
* 0.18 * (1-0.18)) = **1.2149**

industry standards
suggest that 10% of new vehicles require warranty service within
the first year. Jones Nissan, sold 9 Nissans yesterday.
(Round the Mean answer to 2 decimal places and the other
answers to 4 decimal places.)
a.
What is the probability that none of these vehicles requires
warranty service?
Probability
b.
What is the probability that exactly one of these vehicles requires
warranty service?
Probability
c.
Determine the probability that exactly two of these vehicles
require warranty service.
Probability ...

Industry standards suggest that 12% of new vehicles require
warranty service within the first year. Jones Nissan, sold 10
Nissans yesterday. (Round the Mean answer to 2 decimal
places and the other answers to 4 decimal places.)
a. What is the probability that none of these
vehicles requires warranty service?
Probability
b. What is the probability that exactly one of
these vehicles requires warranty service?
Probability
c. Determine the probability that exactly two
of these vehicles require warranty service.
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warranty service within the first year. Jones Nissan, sold 8
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places and the other answers to 4 decimal places.)
a. What is the probability that none of these
vehicles requires warranty service?
Probability
b. What is the probability that exactly one of
these vehicles requires warranty service?
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c. Determine the probability that exactly two
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