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Home Q & A Board Science-Related Homework Help Mathematics
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Catracho Catracho
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Posts: 529
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5 years ago
A certain brand of cars captured
17.3
17.3​% of the market. If 3 cars are selected at​ random, the probability distribution is given below.  Find​ E(x).
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#1
Educator
5 years ago
For this:

\(E(x)=\sum _{ }^{ }\left[x\cdot p(x)\right]\)

\(\sum _{ }^{ }=\left(0\times 0.2\right)+\left(1\times 0.4\right)+\left(2\times 0.1\right)+\left(3\times 0.3\right)\)

\(=\frac{3}{2}or\ 1.5\)
wrote...
#2
5 years ago
Thank you
wrote...
#3
4 years ago
Thank you!
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