Ex 6.1.1

1. A numerical description of the outcome of an experiment

is called a

descriptive statistic
probability function
variance
random variable
None of the above answers is correct

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2. A continuous random variable may assume
any value in an interval or collection of intervals
only integer values in an interval or collection of intervals
only fractional values in an interval or collection of intervals
only the positive integer values in an interval
None of the above answers is correct

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3. An experiment consists of making 80 telephone calls in order

to sell a particular insurance policy. The random variable in this

experiment is a

discrete random variable
continuous random variable
conplex random variable
None of the above answers is correct