Question

a die is thrown 300 times with frequencies for the outcome 1 2 3 4 5 6, whats the probablity of getting prime number, given the frequencies are 42 60 55 53 60 and 30 respectively?

Answer 1

Here, prime numbers are 2, 3, 5

the chance of getting 2 is 60 , 3 is 55 and 5 is 60

So , P(getting a prime number)=No.of favourable outcomes/Total no. of outcomes

P(getting a prime number)=60+55+60/300

=175/300

Hence, =7/12 is the probability of getting a prime nunber