And pick a card at random from the numbers One to eight. What is the probability that that? you pick a prime number.

Answer 1

First, let's identify the prime numbers between 1 and 8. The prime numbers in this range are:

• 2
• 3
• 5
• 7

This gives us a total of 4 prime numbers.

The total numbers from 1 to 8 are:

1, 2, 3, 4, 5, 6, 7, 8

This gives us a total of 8 numbers.

The probability of picking a prime number is the number of prime numbers divided by the total number of numbers:

\[ \text{Probability} = \frac{\text{Number of prime numbers}}{\text{Total numbers}} = \frac{4}{8} = \frac{1}{2} \]

So, the probability of picking a prime number is \( \frac{1}{2} \) or 50%.