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IrinaVladis [17]
3 years ago
8

There are 3 white marbles and 7 blue marbles in a bag.Jamie will randomly pick two marbles out of the bag without replacing the

first marble chosen. What is the probability of jamie' s picking 2 white marbles?
A. 1/15
B.1/18
C.1/20
D.1/7
PLEASE HELP
Mathematics
2 answers:
finlep [7]3 years ago
8 0
(3/10)*(2/9)=6/90 which reduces to 1/15 which is A
masha68 [24]3 years ago
8 0

Answer: A. \frac{1}{15}

Step-by-step explanation:

Given: The number of white marbles = 3

Total number of marbles =3+7=10

Since, Jamie will randomly pick two marbles out of the bag without replacing the first marble chosen.

The probability of Jamie' s picking 2 white marbles is given by :-

\text{P(2 white)}=\frac{3}{10}\times\frac{2}{9}=\frac{1}{15}

Hence, the probability of Jamie' s picking 2 white marbles =\frac{1}{15}

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