Question

FAN AND MEDAL
Cathy used a probability simulator to pull 3 colored marbles from a bag and flip a coin 50 times. The results are shown in the tables below:


Color of
Marble Number of
Times Rolled
Blue
12
Green
18
Yellow
20


Heads Tails
30
20


Using Cathy's simulation, what is the probability of pulling a blue marble and the coin landing tails up?
240 over 2500
220 over 2500
12 over 50
32 over 50

Answer 1

@starlord6200

Answer 2

@johnweldon1993

Answer 3

Hmm the wording is kinda weird here

Okay so marbles...total of 50 pulls right?

out of those 50...a blue marble was pulled 12 times...so the probability of THAT happening was

\[\large P_{blue marble} = \frac{12}{50}\]

Now for the coin flip...50 total flips...and 20 of them were tails up...so the probability of THAT is

\[\large P_{coin flip} = \frac{20}{50}\]

To find the combined probability of these 2 independent events...we just multiply the 2 probabilities :)

Answer 4

thanks

Answer 5

of course :)