The probability of selecting 3 pencils from a box of 5 red , 3 blue, 4 green pencils is 60/1320.
Given that box contains 5 red pencils, 3 blue pencils abd 4 green pencils.
We have to calculate the probability that 3 red pencils are selected from box. Probability is the likeliness of happening an event among all the events possible.It lies between 0 and 1. The formula of calculating probability is as under:
Probability = number of items/ total items.
Number of pencils in box=12
Number of red pencils=5
Number of blue pencils=3
Number of green pencils=4
Probability of randomly selecting 3 red pencils will be 5*4*3/12*11*10 if pencil is not replaced after drawn of pencil.
=60/1320
=1/22
Hence the probability that 3 red pencils are selected is 1/22.
Learn more about probability at https://brainly.com/question/24756209
#SPJ4
