In a box there are 10 T-shirts,15 long sleeve shirts and 25 gowns.If one attire is picked at random, what is the probability that the attire is either a T-shirt or a gown?
there are 50 total pieces of attire
T-shirts and gowns make up 35 pieces
To find the probability of picking either a T-shirt or a gown, we need to gather two pieces of information: the number of T-shirts and gowns in the box, and the total number of attires in the box.
Given:
Number of T-shirts = 10
Number of gowns = 25
Total number of attires = 10 (T-shirts) + 15 (long sleeve shirts) + 25 (gowns) = 50
To calculate the probability, we divide the number of favorable outcomes (picking a T-shirt or a gown) by the total number of possible outcomes (picking any attire).
Number of favorable outcomes = Number of T-shirts + Number of gowns = 10 + 25 = 35
Total number of possible outcomes = Total number of attires = 50
Therefore, the probability of picking either a T-shirt or a gown is 35/50, which simplifies to 7/10 or 0.7.