What is the probability of getting a composite number when a number is selected from the numbers 1 to 100?

The probability of getting a composite number is 1/3.

What is the probability of getting a composite number?

1/3
The probability of getting a composite number is 1/3.

What is the probability of getting a prime number when a number is chosen at random between 1 and 100?

(Thus the probability that a randomly chosen number from 1 to 100 is prime is 25/100 = 25\%.)

What is the percentage of composite numbers from 1 to 20?

So, the percentage of composite numbers from 1 to 20 is 55\%.

What is the probability to get a prime number from 1 to 20?

Answer: The primes from 1 to 20 are 2, 3, 5, 7, 11, 13, 17, 19. There are 8 of them. So the probability of getting a prime number is 8/20 = 2/5.

What is the probability of getting a prime as the product?

Favourable outcomes are (1,2),(1,3),(1,5),(2,1),(3,1),(5,1). Only these six cases are giving the product of the numbers appearing on the two dice as a prime number. Therefore, probability that the product is a prime number=636=16. Hence, the required probability is 16.

What is sum of all the composite numbers up to 20?

The answer is 117.

What is the probability of getting a composite number on the dice?

On a through of a dice 6 possible outcomes are possible. The are {1,2,3,4,5,6}. Among which only 4 and 6 are composite numbers i.e. two numbers are composite. Now from the definition of probability, the probability of getting a composite number on the throw of dice is 62

What is the probability of each side of a die coming up?

When we roll a die, there’s a symmetry between the sides. There’s no reason why any of them should be more or less likely than the others to come up, so it’s clear that the probability for each of them should be the same (if the die is symmetric and we throw it hard enough).

Do humans pick certain numbers more often than others?

Humans tend to pick certain numbers more often than other numbers. For example 7, 17, 35 and 37 are quite popular. No amount of mathematics would allow you to predict such a distribution without some facts from psychology. See here for some more details: scienceblogs.com/cognitivedaily/2007/02/…$\\endgroup$ – Dan Piponi Jan 18 ’11 at 23:06

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