Without looking, Tammy takes a marble
out of a bag that contains 10 red
marbles, 15 green marbles, and 25. blue
marbles. She records its color and
returns the marble to the bag. If Tammy
repeats this process 90 times, how many
times can she expect to pull out a red
marble?

18

Step-by-step explanation:

the number of possible outcomes that do not show a 1 on the first spinner and show the number 4 on the second spinner is 2.

spinner 1 spinner 2

1                     1

1                     2

1                     3

1                     4

2                   1

2                   2

2                   3

2                   4   = not 1, and 4

3                   1

3                   2

3                   3

3                   4 = not 1, and 4

only 2 outcomes have passed the given condition.

step-by-step explanation: