Question

The table below shows the number of marbles of different colors in a bag:

Marble Experiment

Color of
Marbles Number of
Marbles
Red
1
White
5
Black
10


Ursula draws a marble from the bag randomly without looking. She then draws another marble from the bag without replacing the first one. Which expression shows the probability of drawing black marbles in both the trials?
10 over 16 added to 9 over 16
10 over 16 added to 9 over 15
10 over 16 multiplied by 9 over 16
10 over 16 multiplied by 9 over 15

Answer 1

@welshfella please help

Answer 2

thank you for coming really

Answer 3

P(black first draw) = 10/16
p(black on 2nd draw) = 9/15

multiply these 2 probabolities

Answer 4

ok 1sec i am right now

Answer 5

which one do you think it is?

Answer 6

3/6

Answer 7

oh oh oh sorry D

Answer 8

no need to work it out
yes thats right D

Answer 9

ok can you help me with a cople more please @welshfella

Answer 10

gotta go right now sorry