nmbarraz4521 nmbarraz4521
  • 13-12-2022
  • Mathematics
contestada

Let X be the number of cars owned by an adult living in the USA. The probability distribution of X is given below:
X P(X)
0
0.25
1 0.50
2 0.15
3 0.05
4 ?
What is the probability that a randomly selected adult owns exactly 4 cars? What is the mean of X?

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