Discrete Random Variables 12th Grade Quiz

Discrete Random Variables

Assessment

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Joel Rowlett

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Mathematics

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12th Grade

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38 plays

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Hard

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10 questions

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Multiple Choice

30 sec

1 pt

Which of the following is NOT an assumption of the Binomial distribution?

All trials must be independent.

Each trial must be classified as a success or a failure.

All trials are dependent on each other.

The number of successes in the trials is counted.

Multiple Choice

30 sec

1 pt

An algebra 2 test has 6 multiple choice questions with four choices with one correct answer each. If we just randomly guess on each of the 6 questions, what is the probability that you get exactly 3 questions correct?

0.962

0.132

0.831

0.250

Multiple Choice

30 sec

1 pt

The American Red Cross says that about 11% of the U.S. population has Type B blood. A blood drive is being held at your school. What is the probability that at least 2 of the first 10 blood donors has Type B blood?

0.088

0.697

0.214

0.303

Multiple Choice

5 mins

1 pt

Bob is taking a 100 question test. They have a 90 % probability of getting any one question correct. WHICH IS THE CORRECT FORMULA TO FIND OUT THE PROBABILITY that they will answer EXACTLY 70 questions correctly?

₁₀₀C₇₀ ( 0.18 )³⁰ ( 0.90 )⁷⁰