Answer:
0.533
Step-by-step explanation:
I think is C is the first one. B for the second. C for the third. and C again. I hope these are right! have a good day!
Answer:
wouldnt it be -4 -4??since it going from 4 to 4 maybe
The answer to this is 10 39/88.
Answer:
option a)
0.286
Step-by-step explanation:
Given that,
number of red pens in cup = 5
number of black pens in cup = 10
number of pen randomly selected = 3
There are 5 red pens and 10 black pens. So there are 5 + 10 = 15 pens in all.
probability of having all red pens = (5/15 x 4/14 x 3/13)
= 2/91
probability of having all black pens = (10/15 x 9/14 x 8/13)
= 24/91
probability that all pen are of same colour = 24/91 + 2/91
= 2/7
≈ 0.286
