STAT EXAM #2
A continuous random variable may assume only integer values in a given interval.
false
All continuous random variables are normally distributed.
false
In a binomial experiment, the results of one trial are dependent on the results of other trials.
false
The mean of the binomial random variable is np(1 − p).
false
The normal probability distribution is a discrete probability distribution.
false
The mean of the binomial distribution is equal to
np
The set of all possible outcomes for an experiment is called a(n)
sample space
Which of the following is not a discrete random variable?
the number of minutes required to run 1 mile
A standard normal distribution has a mean of ________ and standard deviation of ________.
0,1
A continuous probability distribution that has a rectangular shape, where the probability is evenly distributed over an interval of numbers, is called a uniform probability distribution.
true
A discrete random variable may assume a countable sequence or list.
true
The standard deviation of a standard normal distribution is always equal to 1.
true
The time (in seconds) it takes for an athlete to run 50 meters is an example of a continuous random variable.
true