3 years ago

A multiple choice question has four answers. If you guess, what is the probability of guess the correct answer

2 answers:

8 0

Since there is only one right answer out of the four, your chances at being right after guessing are 1/4, or 0.25

3 0

With no other factors, 25%. There is a 1 in 4 chance you will have the right answer. 1/4 is .25

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Nikitich [7]

Part A: c for cost. c=0.31m+0.5

0.31m is the cost per minute. 0.5 is cost per call.

Part B: 0.31m+0.5=5.15 to solve we must rearrange.

subtract 0.5 from each side giving us 0.31m=4.85

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