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If a number is chosen at random from the numbers 1 to 20 inclusive what is the probability a prime will be picked?
Wiki User
∙ 13y ago
There are 8 out of 20 numbers that are prime, so 8/20, or 2/5.
Wiki User
∙ 13y ago
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What is the probability of prime numbers being chosen randomly from the number 1-49?
15/49ExplanationThere are 15 prime numbers between 1 and 49 (2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47). If you randomly choose one natural number from the 49 numbers between 1 and 49 inclusive, there is a 15/49 probability that it will be prime.
If a number from 1 to 20 is chosen what is the probability of getting 7?
1 out of 20 this is because there are 20 numbers in total, and there is only one 7 in there. (Assuming that there is the same probability for each number to be chosen, and that 17 is excluded as an affirmative outcome)
A number is chosen 1 to 25 find the probabillity of selecting a number greater than 18?
Probability is ratio of the events you want over the total number of events. There are 7 numbers greater than 18 and you have 25 total options, so your probability is 7/25 or 28%.
What is the probability of picking a prime number from numbers between 1 and 20?
The probability is 8/20.
What is the probability of spinning a number?
The answer depends on the shape of the spinner and the numbers on it.
What is the probability that you pick an odd number at random from 75 to 100?
From 75 to 100 (inclusive), there are 26 numbers, and 13 of them are odd.The probability of picking an odd number is 13/26 = 50%.
One number is chosen at random from the whole numbers 1 to 100 inclusiveWhat is the probability that the number is not prime?
3 out of 4
One number is chosen at random from the whole numbers 1 to 100 inclusiveWhat is the probability that the number has two digits?
90%
What is the probability of prime numbers being chosen randomly from the number 1-49?
15/49ExplanationThere are 15 prime numbers between 1 and 49 (2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47). If you randomly choose one natural number from the 49 numbers between 1 and 49 inclusive, there is a 15/49 probability that it will be prime.
If a number from 1 to 20 is chosen what is the probability of getting 7?
1 out of 20 this is because there are 20 numbers in total, and there is only one 7 in there. (Assuming that there is the same probability for each number to be chosen, and that 17 is excluded as an affirmative outcome)
What is the Probability that if a number is chosen the number is even?
50%
A number is chosen at random from the first twelve whole numbers. What is theThe probability that it is isExactly divisible by 3?
1/3
A number is chosen at random from the first 20 positive whole numbers What is the probability that it is not a prime number?
There are 12 composite (and 8 primes) in the first twenty whole numbers. So the probability of randomly choosing a non-prime is 12/20 or 60%.
A number is chosen at random from the first 10 whole number What is the probability that it is not exactly divisible by 3?
the first 10 whole numbers are numbers 1 to 10 and in those numbers only 3 numbers are divisible by 3 in which 3, 6 and 9 therefore the probability of from those figures that the numbers won't be divisible by 3 is 7/10 or 70%.
How many combinations of numbers of 1-99 are there in 5 numbers?
Assuming no repetition is allowed, there are 8582777280 ways in which you can pick any of the numbers from 1 to 99 inclusive with 5 numbers. This is given by the formula n! / (n - r)! where n is the number of numbers you have to choose from, and r is the number of numbers chosen.
What is the largest probability that can exist?
A probability must needs be a number between 0 and 1 (often expressed as 0% and 100%), inclusive.
What is the probability that a number chosen is divisible by 2?
50 50 odd or even same probability
