I suspect you want the area under the standard normal curve to the left of z = -0.95.
On my calculator I typed in normal cdf(-100, -0.95) and got the result 0.171.
With 21 marbles in the bag, and 9 of them green, her chances are 9/21 that she will pull a green marble. If you reduce 9/21 you get 3/7 which is the way the answer should be expressed (in lowest terms)
Answer Probability of green = 3/7
Answer:
10 cups
Step-by-step explanation:
1/4 cup times 4 is 1 cup
1/4 cup times 8 is 2 cups
now you have your two cups and you need two more 1/4 to make 2/4
