What is the probability of getting a factor of 30?

therefore probability is 3/8.

What is a factor of 30?

The factors of 30 are 1, 2, 3, 5, 6, 10, 15, 30 and its negative factors are -1, -2, -3, -5, -6, -10, -15, -30.

What is the probability that a 2 digit number selected at random?

There are 90 two digit numbers(99–9). Out of this there are 6 numbers divisible by 15(15, 30, 45, 60, 75, 90), which are also divisible by 5. Therefore, the favorable cases are 30–6=24. Hence, the required probability is 24/90 = 4/15.

What is the probability that a number selected from 1 to 30 is a prime number?

Prime numbers between 1 and 30 are 2 , 3 , 5 , 7 , 11 , 13 , 17 , 19 , 23 and 29. i.e. 10 / 30 = 1 / 3 . Hence , option (c) 1/3 is correct.

How do you calculate the randomness of a factor 30?

P (factor of 30 chosen is a 2-digit number) = number of two-digit factors ÷ number of factors as a decimal number. In mathematics, randomness is related to a probability distribution. If you specify what the probability is for each factor to be chosen, and whether you assume independence or not, then we could answer the question, perhaps.

What is the probability of finding the prime factor of 30?

The prime factors of 30 are 2, 3 and 5. None of them are 2 digit numbers, so, probability 0. Perhaps you meant a divisor of 30 chosen at random. The divisors of 30 are 1 | 2 | 3 | 5 | 6 | 10 | 15 | 30 (8 divisors). Of the 8, 3 have 2 digits.

What is the probability that the divisors of 30 are 2-digit numbers?

The divisors of 30 are 1 | 2 | 3 | 5 | 6 | 10 | 15 | 30 (8 divisors). Of the 8, 3 have 2 digits. So in this case, the probability the divisor is a 2-digit number is 3/8, or 37.5 \%. Factors are 2,3, 5, 6,10 &15; of 6 factors only last two are two-digit, so 1/3.

How many two-digit factors of 30 are there?

The positive whole-number factors of 30 are: 1, 2, 3, 5, 6, 10, 15 and 30. So, there are 8 of them. Of these, 3 have two digits. Writing each factor on a slip of paper, then putting the slips into a hat, and finally choosing one without looking, get that. P(factor of 30 chosen is a 2-digit number) = number of two-digit factors ÷ number of factors.