After 40 spins, Chris landed on red 18 times. What is the experimental probability of landing on red? What is the theoretical probability of landing on red? Right as a fraction in simplest form.

clearly, it is 18/40

Since I have no idea what part of the spinner is colored red, I cannot give a theoretical probability.

If you pay attention to details (such as spelling) you can post a coherent problem...

To find the experimental probability of landing on red, you need to divide the number of times Chris landed on red by the total number of spins. In this case, Chris landed on red 18 times out of 40 spins.

Experimental probability of landing on red = Number of times landed on red / Total number of spins
= 18 / 40
= 9 / 20

Therefore, the experimental probability of landing on red is 9/20.

To find the theoretical probability of landing on red, you need to divide the number of favorable outcomes (landing on red) by the total number of possible outcomes. In European roulette, there are 18 red numbers out of a total of 37 numbers (18 red, 18 black, and 1 green).

Theoretical probability of landing on red = Number of red numbers / Total number of numbers
= 18 / 37

Since the fraction 18/37 cannot be simplified further, the theoretical probability of landing on red is 18/37.