What Is the Probability of Picking a Prime Number Between 1 and 15?

Learn how to calculate the probability of selecting a prime number from the numbers 1 to 15 with a simple step-by-step explanation.

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The probability of getting a prime number from 1 to 15 is calculated by identifying the prime numbers within that range, which are 2, 3, 5, 7, 11, and 13. There are a total of 6 prime numbers out of 15 possible numbers. Thus, the probability is 6 out of 15 or, when simplified, 2 out of 5. This means there is a 40% chance to pick a prime number randomly from numbers 1 to 15.

FAQs & Answers

  1. What is a prime number? A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.
  2. How do you calculate the probability of picking a prime number? To calculate the probability, you divide the number of prime numbers in the range by the total number of numbers in the range.
  3. Why are prime numbers important in mathematics? Prime numbers are fundamental because they are the building blocks of whole numbers and play a key role in number theory and cryptography.