Question

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

Answer 1

A think

Answer 2

THE PROBABILITY THAT HE WILL PICK THE FIRST WHITE MARBLE IS 3 /10
SINCE THE MARBLE IS NOT REPLACED THE TOTAL NUMBER OF MARBES NOW IS 9 AND REMAINING ARE 2 WHITE MARBLES
PROBABILITY OF PICKING THE SECOND WHITE MARBLE = 2/9

so PROBABILITY OF PICKING TWO WHITE MARBLES = 3/10* 2/9
= 1/15

Answer 3

A

Answer 4

The purpose of studying the insects at a crime scene is to help establish _____.

Answer 5

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unpredictable
predictable based on

Answer 6

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the ba

Answer 7

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Answer 8

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Answer 9

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Answer 10

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Answer 11

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Answer 12

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F

He

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Answer 13

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Density

Answer 18

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Answer 20

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A.2/3x^-2+x+1
B.x^3+0x^2+2x+sqrt2
C.x^2/5+sqrt3x+1
D.2/x^3+x+1/2
E. x^-2+x+1

Answer 21

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Answer 22

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Answer 23

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