The expected number of cars in a randomly selected American household will be 1.75.
Using the probability model, if we ignore some households that own more than 5 cars. Then,
Number of cars Probability
0 0.09
1 0.36
2 0.35
3 0.13
4 0.05
5 0.02
Multiplying each possibility by its probability
∑xP(x)
= 0x0.09+1x0.36+2x0.35+3x0.13+4x0.05+5x0.02
=1.75
Probability is simply the possibility that something will happen. When we don't know how something will turn out, we can talk about the possibility of one outcome or the likelihood of several. The study of events that fit into a probability distribution is known as statistics. A probability model is a representation of a random occurrence in mathematics. It is defined by its sample space, occurrences, and related probabilities for each event. When choosing a sample from a population using the randomization principle, also referred to as chance or random selection, the procedure is known as probability sampling. Generally speaking, probability sampling is more challenging, expensive, and time-consuming than non-probability sampling.
Note that the full question is:
What’s the expected number of cars in a randomly selected American household?
(a) Between 0 and 5
(b) 1.00
(c) 1.75
(d) 1.84
(e) 2.00
To learn more about probability: brainly.com/question/13604758
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