What is the probability that a number selected from 1 to 20 is a multiple of 3?

Step-by-step explanation: Between 1 and 20, there are 6 multiples of 3 – 3, 6, 9, 12, 15 and 18. That is, 70\%.

What is the probability that a prime number selected at random from the numbers 1 to 35?

Hence, the required probability of getting a prime number , P(E1) = 11/35 .

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

Prime numbers from 1 to 30 are 2,3,5,7,11,13,17,19,23,29. Their number is 10. ∴ P(getting a prime number) =1030=13.

What are odd prime numbers from 1 to 20?

The list of odd numbers that are prime numbers from 1 to 20 are 3, 5, 7, 11, 13, 17, 19.

What is the probability of picking an even multiple of 3?

Kinda a hobby. From 1 to 20 (inclusive) there are 10 even numbers, so the probability of picking an even number is 10/20, or 1/2. There are 6 multiples of 3, so the probability of picking a multiple of 3 is 6/20, or 3/10.

What is the probability of 6+3+3?

There are 3 even numbers, each a multiple of 3, also contributing and there are 3 odd numbers, each a multiple of 3, also contributing. Thus There are 6+3+3 = 12 possible number picks that comply with the selection criteria. Such numbers are 2 ,3, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18. Probability as requested = 12/18 = 2/3 = .666666… ~ 66.7\%

How many even and odd numbers are there between 1-20?

There are 3 even numbers, each a multiple of 3, also contributing and there are 3 odd numbers, each a multiple of 3, also contributing. Thus There are 6+3+3 = 12 possible number picks that comply with the selection criteria. Such numbers are 2 ,3, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18. Probabilit Between 1–20 suggests 2–19.

How many even numbers are multiples of 3?

The numbers 6, 12, 18 are both even and multiples of 3. The numbers 3, 9, 15 are odd but multiples of 3. Thus, there are 6 even numbers, none of which are multiples of 3, contributing to the probability as requested.