Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. Kevin spins the spinner 180 times. About how many times should Kevin land on red or purple?
about 18 times
about 36 times
about 40 times
about 72 times
Since there are 2 sections of each color, Kevin has a 2/10 = 1/5 chance of landing on red or purple each time he spins the spinner.
Thus, out of 180 spins, Kevin can expect to land on red or purple approximately 1/5 * 180 = 36 times.
So, about 36 times is the closest estimate.