Answer:
Step-by-step explanation:
Write an equation for each problem. Then solve. Round to the nearest tenth if necessary.7. 40 is what percent of 145? Round to t
1 answer:
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Answer:
0.267
Step-by-step explanation:
This can be solved using the binomial probability formula which is:
Where
n is total number of trials (here, the total number of questions is 8, so n = 8)
k is the number of attempts we are looking for (here, we want to find probability of 1 question correct, so k = 1)
p is the probability of success (here, success is getting a questions right. Since there are 4 choices and 1 is right, probability of right = 1/4)
<em>Plugging all the info into the formula we get:</em>
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<em>Second choice is right.</em>