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# A certain brand of cars captured 17.3 17.3​% of the market. If 3 cars are selected at​ random, ...

wrote...
Express Lane Plus
Posts: 485
Rep: 2 0
8 months ago
 A certain brand of cars captured 17.3 17.3​% of the market. If 3 cars are selected at​ random, ... A certain brand of cars captured 17.317.3​% of the market. If 3 cars are selected at​ random, the probability distribution is given below.  Find​ E(x). Attached file Thumbnail(s): You must login or register to gain access to this attachment. Read 215 times 3 Replies
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wrote...
Educator
8 months ago
 For this:$$E(x)=\sum _{ }^{ }\left[x\cdot p(x)\right]$$$$\sum _{ }^{ }=\left(0\times 0.2\right)+\left(1\times 0.4\right)+\left(2\times 0.1\right)+\left(3\times 0.3\right)$$$$=\frac{3}{2}or\ 1.5$$
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wrote...
8 months ago
 Thank you
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A month ago
 Thank you!
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