IS 310 Exam 2 Questions With Complete Solutions
true/false questions
."Argumentativeness" refers to students' propensity or
willingness to confront or argue with others (they actually enjoy
arguing). Assume that the probability distribution is unimodal
and symmetrical (like a bell). What probability distribution
would you use to calculate the probability that the Standardized
Argumentativeness z-score among A students is between 2.5
and 3? (Hint: You have all of the information you need to
compute the probability).
a. Uniform probability distribution
b. Normal Probability distribution
c.Discrete Normal probability distribution
d. Continuous binomial probability distribution Correct Answer
c.Discrete Normal probability distribution
.A random variable with Poisson distribution is an example of a
continuous random
Variable. Correct Answer TRUE
,.For the standard normal probability distribution, What z-value,
z0,corresponds to P(Z >z0) =.95?
a.1.96
b.1.65
c.-1.65
D.-1.96 Correct Answer b.1.65
.Out of a cauldron of 50 Snicker bars, 80 Reece's peanut butter
cups, and 20 Almond Joys, what probability distribution would
you use to calculate the probability of Selecting a Snicker bar.
(Hint: You have all of the information that you need to compute
the probability.)
a.Empirical probability distribution.
b.Discrete uniform probability distribution.
c.Binomial probability distribution.
d.Poisson probability distribution. Correct Answer a.Empirical
probability distribution.
"Talkaholism" is an accepted measure of individuals' level of
talkativeness. Assume that the probability distribution is
unimodal and symmetrical (like a bell). What probability
distribution would you use to calculate the probability that the
, average talkativeness score among students sitting in the back
Of Dr. Ritter's IS310 class has a standardized "z-score" of 3 or
higher(i.e., talk waaaay too much)?(Hint: You have all of the
information you need to compute the probability).
a. Uniform Probability Distribution
b. Normal Probability distribution
c.Discrete Normal probability distribution
d. Continuous binomial probability Distribution Correct Answer
c.Discrete Normal probability distribution
14. For normal distributions which of the following is NOT
True regarding the probability density function (pdf), f(x)?
a.As the standard deviation increases, the graph of the pdf, f(x),
flattens and becomes wider.
b.As the mean increases, so does central location of the pdf, f(x).
c.As the standard deviation decreases, the graph of the pdf, f(x),
narrows And Becomes taller.
d.As both the mean and the standard deviation increase,the
graph of the pdf becomes skewed to the right. Correct Answer
b.As the mean increases, so does central location of the pdf, f(x).
true/false questions
."Argumentativeness" refers to students' propensity or
willingness to confront or argue with others (they actually enjoy
arguing). Assume that the probability distribution is unimodal
and symmetrical (like a bell). What probability distribution
would you use to calculate the probability that the Standardized
Argumentativeness z-score among A students is between 2.5
and 3? (Hint: You have all of the information you need to
compute the probability).
a. Uniform probability distribution
b. Normal Probability distribution
c.Discrete Normal probability distribution
d. Continuous binomial probability distribution Correct Answer
c.Discrete Normal probability distribution
.A random variable with Poisson distribution is an example of a
continuous random
Variable. Correct Answer TRUE
,.For the standard normal probability distribution, What z-value,
z0,corresponds to P(Z >z0) =.95?
a.1.96
b.1.65
c.-1.65
D.-1.96 Correct Answer b.1.65
.Out of a cauldron of 50 Snicker bars, 80 Reece's peanut butter
cups, and 20 Almond Joys, what probability distribution would
you use to calculate the probability of Selecting a Snicker bar.
(Hint: You have all of the information that you need to compute
the probability.)
a.Empirical probability distribution.
b.Discrete uniform probability distribution.
c.Binomial probability distribution.
d.Poisson probability distribution. Correct Answer a.Empirical
probability distribution.
"Talkaholism" is an accepted measure of individuals' level of
talkativeness. Assume that the probability distribution is
unimodal and symmetrical (like a bell). What probability
distribution would you use to calculate the probability that the
, average talkativeness score among students sitting in the back
Of Dr. Ritter's IS310 class has a standardized "z-score" of 3 or
higher(i.e., talk waaaay too much)?(Hint: You have all of the
information you need to compute the probability).
a. Uniform Probability Distribution
b. Normal Probability distribution
c.Discrete Normal probability distribution
d. Continuous binomial probability Distribution Correct Answer
c.Discrete Normal probability distribution
14. For normal distributions which of the following is NOT
True regarding the probability density function (pdf), f(x)?
a.As the standard deviation increases, the graph of the pdf, f(x),
flattens and becomes wider.
b.As the mean increases, so does central location of the pdf, f(x).
c.As the standard deviation decreases, the graph of the pdf, f(x),
narrows And Becomes taller.
d.As both the mean and the standard deviation increase,the
graph of the pdf becomes skewed to the right. Correct Answer
b.As the mean increases, so does central location of the pdf, f(x).
