if you have a spinner with 3 parts. 1 white 2 blue. and you spin the spinner 90 times how many times do you expect the spinner to land on blue

prob(blue) = 2/3

so number of time to get blue when spinning 90 times
= (2/3)(90) = 60

To find out how many times you would expect the spinner to land on blue, you need to determine the probability of landing on blue for each spin and then multiply it by the number of spins.

In this case, you have a spinner with 3 parts - 1 white and 2 blue. To find the probability of landing on blue, divide the number of blue parts by the total number of parts:

Probability of landing on blue = Number of blue parts / Total number of parts
= 2 / (1 + 2)
= 2/3

So, for each spin, the probability of landing on blue is 2/3.

To find the expected number of times the spinner will land on blue when spun 90 times, you multiply the probability of landing on blue by the number of spins:

Expected number of times landing on blue = Probability of landing on blue × Number of spins
= (2/3) × 90
= 60

Therefore, you would expect the spinner to land on blue approximately 60 times when spun 90 times.