If you spin a spinner 400 times about how many times would you expect to stop on a vowel?

To determine how many times you would expect to stop on a vowel when spinning a spinner 400 times, you first need to know the number of vowels on the spinner. Assuming the spinner has an equal chance of landing on each section and contains vowels, calculate the probability of landing on a vowel. Multiply that probability by 400 to get the expected number of times you would land on a vowel. For example, if there are 5 vowels out of 10 sections, the expectation would be 400 x (5/10) = 200 times.