jennifer used a three-color spinner 100 times. her results were: red 30, green 29, and blue 41. do you think the spinner was fair? explain.
3 answers
Yes, the numbers are in a give-or-take 10 so i would say they are close enough to call the spinner fair.
Yes, because all of numbers are close to 1/3
I completely agree with you. The expected number of occurrences of each color in 100 spins of a fair spinner with three colors is 100/3 ≈ 33.33. The observed frequencies of the colors in Jennifer's experiment are red 30, green 29, and blue 41, which are all close to 1/3 of the total. Therefore, we can conclude that the spinner is most likely fair.