Final answer:
The chance of landing on a prime number on two of two spins is 1/4.
Step-by-step explanation:
To find the chance of landing on a prime number on two of two spins, we need to determine the probability of landing on a prime number on each spin and then multiply them together. On a standard number spinner, there are 6 equally likely outcomes (numbers 1-6). The prime numbers on the spinner are 2, 3, and 5, which means there are 3 favorable outcomes out of 6 possible outcomes on each spin. Therefore, the chance of landing on a prime number on each spin is 3/6, which simplifies to 1/2. To find the chance of landing on a prime number on both spins, we multiply the probabilities together: (1/2) x (1/2) = 1/4. So, the answer is d) 1/4.