Question

A bag contains 5 blue marbles, 2 black marbles, and 3 red marbles. A marble is randomly drawn from the bag.
The probability of not drawing a black marble is
. The probability of drawing a red marble is
.
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Answer 1

The probability of not drawing a black marble from the bag is one minus the probability of drawing a black marble.

The probability of drawing a black marble is 2 out of 10

So we have 1-2/10=1-1/5=4/5=80%

Answer 2

Does this make sense?

Answer 3

yes thank you !

Answer 4

the next one is easier

Answer 5

im not understanding is the second one 3/10?

Answer 6

The probability of drawing a red marble is

How many reds?
How many total?

Divide.

Answer 7

i got 0.3

Answer 8

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Answer 9

A fair coin is tossed 3 times in a row. What is the probability that heads appears on only the last toss?


A. 1/8
B. 3/8
C. 3/16
D. 3/4

Answer 10

You might want to list all the possible outcomes. Use H for head and T for tail.

Answer 11

Someone please help!

Answer 12

New questions are better than continually using the same question