Sam has 5 red shirts 2 pink shirts and 3 yellow shirts. If she closed her eyes and chooses one shirt at random to wear on Compliments day, what is the probability that she will NOT choose a yellow shirt?
Thank you helpers :)
prob of yellow shirt = 3/10
so prob of NOT a yellow shirt = 1 - 3/10 = 7/10
To find the probability that Sam will not choose a yellow shirt, we need to determine the total number of shirts she has and the number of shirts that are not yellow.
To start with, let's find the total number of shirts Sam has:
Total number of shirts = number of red shirts + number of pink shirts + number of yellow shirts
= 5 (red shirts) + 2 (pink shirts) + 3 (yellow shirts)
= 10 shirts
Next, let's find the number of shirts that are not yellow:
Number of shirts that are not yellow = total number of shirts - number of yellow shirts
= 10 (total shirts) - 3 (yellow shirts)
= 7 shirts
So, Sam has a total of 10 shirts and 7 of them are not yellow.
Finally, we can find the probability of not choosing a yellow shirt by dividing the number of shirts that are not yellow by the total number of shirts:
Probability of not choosing a yellow shirt = number of shirts that are not yellow / total number of shirts
= 7 (not yellow shirts) / 10 (total shirts)
= 7/10
= 0.7
= 70%
Therefore, the probability that Sam will not choose a yellow shirt is 70%.