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A number is chosen at random from the first 20 positive whole numbers What is the probability that it is not a prime number?
Wiki User
∙ 14y ago
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%.
Wiki User
∙ 14y ago
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What is the probability to choose a prime number from numbers 1 to 50?
The probability is 3 out of 10.
What is the probability to choose prime numbers from 1 to 9?
The prime numbers from one to nine are 2, 3, 5, and 7. There are nine numbers from one to nine. The probability is 4 (the number of prime numbers) over 9 (the total number of numbers). Therefore, the probability of choosing a prime number is 4/9 or about 44 percent.
What is a positive number with no decimals or fractions?
Whole numbers are positive numbers and there are no fractions or decimals.
Is the product of 33 negative numbers and 3 positive numbers a positive or negative number?
The product of all those numbers will always be a negative number.
Are all whole numbers positive numbers?
Yes, EXCEPT for the number 0. It is a whole number but is not positive or negative. Real Numbers - Everything I. Rational Numbers- Any number except for non terminating decimals A. Integers- Any negative or positive number...not a decimal1. Whole Numbers- Any positive integer INCLUDING ZEROa. Natural Numbers- Any positive integer (NOT INCLUDING ZERO) The answer is not entirely correct, Whole numbers are numbers without a fractional part or decimal point. Therefore whole numbers can be negative as well as positive. -2 is a whole number but is not positive. There are a number of different interpretations for whole numbers, from non-negative integers, positive integers and all integers (which includes negative integers)
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%
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
If a number is chosen at random from the numbers 1 to 20 inclusive what is the probability a prime will be picked?
There are 8 out of 20 numbers that are prime, so 8/20, or 2/5.
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%.
What is the probability that a number chosen is divisible by 2?
50 50 odd or even same probability
What is the probability of getting a number greater then 5 on a spinner?
The probability is(the total number of numbers on the spinner minus 5)/(the total number of numbers on the spinner)Another way to express the same probability is1 - 5/(the total number of numbers on the spinner)
When you add a positive number by a positive number is the number negative or positive?
Positive numbers always result in positive numbers when added, divided, or multiplied by another positive number.
Are the probability values always greater than or equal to 0 or less than or equal to 1 or all positive numbers?
Probability values are never negative and are always between 0-1 according to the definition Probability of A= Number of outcomes classified as A/Total number of possible outcomes
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%.
