Question

(PART A.IS DONE)
Suppose a bag of marbles has 4 green, 2 red, 5 yellow, 1 brown, and 7 blue marbles.
a. What is the probability of picking a red marble? (Show your work)

6/15*5/15 can be simplified to get to one of these answers : 6/15 = 2/5 (dividing both numerator and denominator by 3) 5/15 = 1/3 (dividing both numerator and denominator by 5) 2/5 * 1/3 =2/15


b. What is the probability of picking a yellow marble, replacing it and picking another yellow marble? (Show your work)

Answer 1

a)2/19

Answer 2

total marbles =
red marble=
probability=no.of red marbles/total marbles

Answer 3

b)2/19