Marnie conducted an experiment using a bag of 12 marbles containing an equal number of blue, red, and green marbles. she randomly chose one marble, noted the color, and returned the marble to the bag. marnie did this for a total of 20 trials. the table below shows the results.

event
count
blue
7
red
8
green
5

what was the experimental probability of choosing a blue marble from a bag?

Step-by-step explanation:

Given : The number of times blue marble drawn from the bag =7

The total number of trials = 20

Then , the experimental probability of choosing a blue marble from a bag is given by :-

Hence, the experimental probability of choosing a blue marble from a bag =

step-by-step explanation:

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi