BSTAT 3321 Test 2 questions well
answered graded A+
False - correct answer ✔✔According the empirical rule for normally distributed variables, 75%
of the values fall within one standard deviation of the mean.
The time of a flight between Chicago and New York - correct answer ✔✔Which of the following
can be represented by a continuous random variable?
True - correct answer ✔✔The standard normal distribution is a normal distribution with a mean
equal to zero and a standard deviation equal to one.
Rate - correct answer ✔✔The exponential distribution is based entirely on one parameter called
the ______ parameter.
the long-run average of the random variable values generated over infinitely many independent
repetitions - correct answer ✔✔We can think of the expected value of a random variable X as
________.
True - correct answer ✔✔The expected value of a random variable X can be referred to as the
population mean.
asymptotic - correct answer ✔✔the normal distribution is ______ in the sense that the tails get
closer and closer to the horizontal axis but never touch it
correlation - correct answer ✔✔The risk of the portfolio depends not only on the individual
risks of the assets but also on the ________ between the asset returns.
answered graded A+
False - correct answer ✔✔According the empirical rule for normally distributed variables, 75%
of the values fall within one standard deviation of the mean.
The time of a flight between Chicago and New York - correct answer ✔✔Which of the following
can be represented by a continuous random variable?
True - correct answer ✔✔The standard normal distribution is a normal distribution with a mean
equal to zero and a standard deviation equal to one.
Rate - correct answer ✔✔The exponential distribution is based entirely on one parameter called
the ______ parameter.
the long-run average of the random variable values generated over infinitely many independent
repetitions - correct answer ✔✔We can think of the expected value of a random variable X as
________.
True - correct answer ✔✔The expected value of a random variable X can be referred to as the
population mean.
asymptotic - correct answer ✔✔the normal distribution is ______ in the sense that the tails get
closer and closer to the horizontal axis but never touch it
correlation - correct answer ✔✔The risk of the portfolio depends not only on the individual
risks of the assets but also on the ________ between the asset returns.
