distribution of X is given in the table below. a) Find the probability that the police office writes at least three tickets. D) Find the mean, variance, and standard deviation of the random variable X.

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Problem 10
The
A random variable X describes the number of tickets a police officer writes out each shift. The probability
distribution of X is given in the table below.
a) Find the probability that the police office writes at least three tickets.
b) Find the mean, variance, and standard deviation of the random variable X.
X = x
1
3
4
6.
P(X = x)
0.15
0.23
0.25
0.20
0.12
A
0.01
Transcribed Image Text:Problem 10 The A random variable X describes the number of tickets a police officer writes out each shift. The probability distribution of X is given in the table below. a) Find the probability that the police office writes at least three tickets. b) Find the mean, variance, and standard deviation of the random variable X. X = x 1 3 4 6. P(X = x) 0.15 0.23 0.25 0.20 0.12 A 0.01
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