The circumcenter of a right triangle is on one ----of the triangle.
1 answer:
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A) Since there are four multiple choice questions Which has one correct answer. The probability of choosing a correct answer is
The probability of choosing wrong answer is
Using the multiplication rule
b) If you guess answers to three of the questions, then the possibilities of getting one correct answer are:
Either the first two are wrong and the third one is correct. This will give the arrangement;
Or the first is wrong the second one is correct and the last one is wrong. This will give the arrangement,
Or the first one is correct and the last two are wrong. This will give the arrangement,
.
c) The probability of getting one correct answer is either the first one is correct or second is correct or third is correct.
The probability of choosing wrong answer is
Using the multiplication rule
b) If you guess answers to three of the questions, then the possibilities of getting one correct answer are:
Either the first two are wrong and the third one is correct. This will give the arrangement;
Or the first is wrong the second one is correct and the last one is wrong. This will give the arrangement,
Or the first one is correct and the last two are wrong. This will give the arrangement,
.
c) The probability of getting one correct answer is either the first one is correct or second is correct or third is correct.