If a spinner labeled 1-7 was spun 150 times, what is the probability of getting a prime number?

Prime numbers are 2, 3, 5 and 7.

http://www.mathsisfun.com/prime_numbers.html

Probability of any one spin getting a prime number = 4/7.

To find the probability of getting a prime number when spinning the spinner, we need to determine the number of prime numbers on the spinner and the total number of possible outcomes.

The spinner is labeled with numbers 1-7, so the possible outcomes are numbers 1, 2, 3, 4, 5, 6, and 7.

Now let's identify the prime numbers in this range: 2, 3, 5, and 7.

Out of the 7 possible outcomes, there are 4 prime numbers.

Therefore, the probability of getting a prime number when the spinner is spun is 4/7.

In decimal form, this probability is approximately 0.5714.

So, the probability of getting a prime number is 4/7 or approximately 0.5714.

To find the probability of getting a prime number when spinning a spinner labeled 1-7, you first need to determine the number of prime numbers on the spinner. Then, divide that number by the total number of possible outcomes.

Step 1: Determine the prime numbers on the spinner.
The numbers on the spinner are 1, 2, 3, 4, 5, 6, and 7. Prime numbers are numbers greater than 1 that have no divisors other than 1 and themselves. So, the prime numbers on the spinner are 2, 3, 5, and 7.

Step 2: Find the total number of possible outcomes.
Since the spinner is labeled 1-7, there are 7 possible outcomes.

Step 3: Calculate the probability.
The probability of getting a prime number is given by the formula:

Probability = Number of favorable outcomes / Total number of possible outcomes

Number of favorable outcomes = 4 (the number of prime numbers on the spinner)
Total number of possible outcomes = 7 (the total number of numbers on the spinner)

Probability = 4 / 7

Therefore, the probability of getting a prime number when spinning the spinner labeled 1-7 is 4/7 or approximately 0.57.