Someone help me pls I need help
2 answers:
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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.
Answer:
Step-by-step explanation:
Rational numbers:
-are all numbers you can write as a quotient of integers ,
-include terminating decimals. For example,
-include repeating decimals. For example,
Irrational numbers:
-have decimal representations that neither terminate nor repeat. For example,
-cannot be written as quotients of integers