The following data show the probabilities for the number of cars sold in a given day at Alex's car dealer store. P(X) 0.13 0.10 0.28 P (3) 0.17 0.09 0.11 3. 4 6. What is the probability that three cars were sold in a day?

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Chapter1: Combinatorial Analysis
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what is the variance? pls answer, thanks

The following data show the probabilities for the number of cars sold in a given day at Alex's car
dealer store.
P(X)
0.13
0.10
X
0.28
3
P (3)
4
0.17
5
0.09
0.11
What is the probability that three cars were sold in a day?
Transcribed Image Text:The following data show the probabilities for the number of cars sold in a given day at Alex's car dealer store. P(X) 0.13 0.10 X 0.28 3 P (3) 4 0.17 5 0.09 0.11 What is the probability that three cars were sold in a day?
The favorable outcome in the experiment to get the bonus point 5 is E = {2, 3, 5, 7}. Because, the prime
numbers between l and 10 are 2, 3, 5, and 7. Thus, the size of event E is n (E) = 4.
Now, the desired probability is determined.
P (To get the bonus point 5)=P(E)
n(E)
n(S)
=0.4
Transcribed Image Text:The favorable outcome in the experiment to get the bonus point 5 is E = {2, 3, 5, 7}. Because, the prime numbers between l and 10 are 2, 3, 5, and 7. Thus, the size of event E is n (E) = 4. Now, the desired probability is determined. P (To get the bonus point 5)=P(E) n(E) n(S) =0.4
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