To determine if the spinner is fair, we need to calculate the expected frequency for each color if the spinner is fair.
There are three colors on the spinner, so the expected frequency for each color should be approximately 1/3 of the total number of spins. In this case, 1/3 of 100 spins is approximately 33.33.
Based on the results Jennifer recorded, the number of spins for each color deviates from the expected value. The blue color appeared more frequently than expected, while the red and green colors appeared less frequently than expected.
This suggests that the spinner may not be fair, as the distribution of colors does not align with what would be expected from a fair spinner.
Jennifer used a three color spinner 100 times. Her results are shown below, do you think the spinner was fair? Explain..
Red 30
Green 29
Blue 41
5 answers
Only answer in 2 sentences
Based on the results, the spinner does not appear to be fair as the number of spins for each color deviates significantly from the expected value of around 33.33 spins per color in 100 total spins.
Make sure a 2nd grader can und
It looks like the spinner might not be fair because the colors didn't show up as many times as we would expect if the spinner was fair. A fair spinner would have all the colors show up about the same number of times.