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Prob Stats Pre Assessment

Authored by Barbara White

Mathematics

11th Grade

Prob Stats Pre Assessment
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5 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is a DISCRETE random variable?

the average amount of electricity consumed

the number of persons eating seafood in a restaurant

the percentage of the students who passed the exam

the average weight of female athletes

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a pair of dice is rolled, which is not a possible value of the random variable for the sum of the points on the upturned faces of the dice?

1

4

7

11

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

The following are continuous random variable except ______.

weight of persons

height of a person

income/money

number of heads in 3 tosses of a fair coin

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A function whose value is a real number determined by each element in the sample space – the set of all possible outcomes of an experiment.

random variable

probability distribution

density function

histogram

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A pair of dice is rolled. Let Y be the random variable denoting the sum of the points on the upturned faces of the dice. Find the values of the random variable Y.

1, 3, 5, 7, 9 and 11

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12

2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12

2, 4, 6, 8, 10 and 12

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