Suppose you have a 1/10 chance of winning with a scratch-off lottery ticket. If you buy 4 tickets, what is the probability of wi
2 answers:
Answer:
1/10000
Step-by-step explanation:
Suppose you have a 1/10 chance of winning with a scratch-off lottery ticket.
If you buy 4 tickets
Probability of winning 1 ticket = 1/10
For 4 tickets we find the probability of every ticket
probability (winning first ticket)=1/10
probability (winning 2nd ticket)=1/10
probability (winning 3rd ticket)=1/10
probability (winning 4th ticket)=1/10
P(winning all 4) =
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Answer:
50.40% probability that all 4 are different.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Desired outcomes:
4 digits, all different
For the first digit, it can be any of them, so there are 10 possible
For the second digit, it can be any of them other than the first digit. So there are 9 possible.
For the third digit, it can be any of them, other than the first and the second. So there are 8 possible.
By the same logic, 7 possible digits for the fourth. So
Total outcomes:
4 digits, each can be any of them(10 from 0 - 9).
So
Probability:
50.40% probability that all 4 are different.