The standard normal distribution has a mean of 1 and standard deviation of 0.
1.True
2.False
Q. 2A college student is randomly selected from the list of those enrolled for the semester. Decide whether the characteristic is a continuous or a discrete random variable:
Distance (in miles) from
home to college.
1.Continuous
2.Discrete
Q. 3A college student is randomly selected from the list of those enrolled for the semester. Decide whether the characteristic is a continuous or a discrete random variable:
Time spent studying over
the past 24 hours.
1.Continuous
2.Discrete
Q. 4A college student is randomly selected from the list of those enrolled for the semester. Decide whether the characteristic is a continuous or a discrete random variable:
Number of classes currently
enrolled in.
1.Continuous
2.Discrete
Q. 5For a continuous random variable x, the height of the density curve over an interval a to b represents the probability that x is between a and b.
1.True
2.False
Q. 6The distribution of all values of a random variable is called a normal distribution.
1.True
2.False
Q. 7A random variable is continuous if the set of possible values includes an entire interval on the number line.
1.True
2.False
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