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Q: What is the probability of picking up number 15 from 1 to 20 numbers?

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The answer depends on whether the first number is replaced before picking the second. If not, the probability is 0.029

1

Since there are 10 odd numbers (1, 3, 5, 7, 9, 11, 13, 15, 17, 19) in the 20 numbers (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20), the probability of picking an odd number in a random sample is 10 in 20, or 1 in 2, or 0.5.

3/10 or 0.3 is the probability of picking a purple marble.

Prime numbers from 1 to 15 are: 2 3 5 7 11 and 13 So the probability is: 6/15 or as 2/5

15 out of 49 30.61%

That leaves 3 numbers, 15, 16, 17. If you're looking for the probability of drawing an even number it would be 1/3, or 0.333.

There are 15 primes through 50, so it would be: (15 * 14) / (50 * 49) = 3 / 35

15/49

15 out of 49

Probability is simple. Probability means the number of favorable outcomes over the total amount of outcomes.For example, if I had 15 marbles in a bag. 10 are yellow, and 5 are red. The probability of picking a yellow marble is 10/15, which simplifies to 2/3.

The event space comprises the numbers 10 to 99, 90 such numbers. The favourable events are 15, 21, 27, ... , 99. There are 15 such numbers. So the probability is 15/90 = 1/6

The probability of picking a 15 or a 16 from the random set [1-20] is 2 in 20, or 1 in 10, or 0.1.

The probability of a prime number in a random pick from the numbers 1-49 is 15 in 49, as there are 15 prime numbers (2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43,and 47) in the range of 1 to 49.

It depends upon how you are picking these numbers. Let's say you are rolling two dice. The probability of rolling 2 fours is 1 in 36. The probability of exactly 1 five is 10 in 36, while the probability of at least 1 five is 11 in 36. The probability of exactly 1 six is 10 in 36, while the probability of at least 1 six is 11 in 36. The probability of at least 1 five or 1 six is 19 in 36. The probability of exactly 1 five or six is 15 in 36. So no matter how you look at it, with dice rolling, the probability of 1 five or 1 six is bigger than the probability of 2 fours. However, if you are picking numbers from a hat, then the probabilities are different.

60% chance or 15/25

53.33... % THere are 8 odd numbers out of 15, so probability = 100*8/15 %

Prob(Pick 6 from 1-15 in 99 trials) = 1 - Prob(Don't pick 6 from 1-15 in 99 trials) = 1 - (14/15)99 = 1 - (0.933...)99 = 1 - 0.00108 approx = 0.9989

There are 15 primes from 1 to 49 (including '1').The probability is (15/49) = 30.612 %(rounded)

The probability of getting two prime numbers when two numbers are selected at random and without replacement, from 1 to 10 is 2/15.

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.

About 15%Since there are (4) 2's and (4) 4's in a deck, the question is really, "what is the probability of picking one of 8 specific cards from a deck of 52?"The answer is 8/52.

Imagine that you have a list of 15 numbers for example. The mean is the average of those number. In other words, take the sum of all the numbers and divide by how many numbers there are (15 in this case). The median is the "middle number," and is found by arranging all the numbers in order of size and then picking the middle number. If you have 15 numbers, the 8th number is the middle one (there would then be seven smaller numbers and seven larger). If instead you have an even number of numbers, then you don't have a single middle number (you have two), and so you would take the average of the two middle ones (for example, if you have 16 numbers, you take the average value of the 8th and 9th numbers as the median). Whether the median or the mean is larger depends entirely on the specific list of number that you are analyzing.

With a single cube, the probability is 100%With two cubes, the probability is 15/36 = 5/12 = 412/3 %

7/15 for blue marbles and 8/14 for the purple marbles this is dependent probability