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Zolol [24]
2 years ago
13

A true-false test has 4 questions. What is the chance of answering all questions correctly by guessing?

Mathematics
1 answer:
Stels [109]2 years ago
5 0

Answer:

Thus, in total, there are 24=16 ways to answer the four questions. Only one of these 16 sequences is correct. Assuming each of these 16 sequences is equally likely to occur (as would result from random guessing), the probability that all four questions are answered correctly is 1/16.

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One group (A) contains 390 people. Three-fifths of the people in group A will be selected to win $100 fuel cards. There is anoth
svetoff [14.1K]

The ratio of nonwinners in group A to nonwinners in group B after the selections are made is 156 : 319.

<h3>What is the ratio?</h3>

Ratio expresses the relationship between two or more numbers. It shows the frequency of the number of times that one value is contained within other value(s).

Nonwinners in group A = (1 - 3/5) x 390 = 156

Winners in group B = (390 - 156) = 234

nonwinners in group B = 553 - 234 = 319

The ratio = 156 : 319

To learn more about ratios, please check: brainly.com/question/25927869

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5 0
3 years ago
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