Find the probability that a digit in the tens place of a two-digit number is a prime.Then from among these,find the probability that the ones digit is also a prime number.
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Step-by-step explanation:
Total 2 digit number(10-99)=90 (total outcome)
Total 2 number whose tens digit is prime(2,3,5,7)= 36 (favourable outcome)
Probability of getting prime number at tens place=Favourable Outcome/Total Outcome
=36/90
=2/5
Answered by
0
Answer:
2/5
Step-by-step explanation:
Total 2 digit number(10-99)=90 (total outcome)
Total 2 number whose tens digit is prime(2,3,5,7)= 36 (favourable outcome)
Probability of getting prime number at tens place=Favourable Outcome/Total Outcome
=36/90
=2/5
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