What is the probability that a respondent is male and prefers arts? - ANSWERS2/15
which of the following is the weighted average of the squared deviations from the expected value? - ANSWERSvariance
which of the following is a continuous random variable? - ANSWERSnumber of students in class
...
What is the probability that a respondent is male and prefers arts? - ANSWERS2/15
which of the following is the weighted average of the squared deviations from the expected value? -
ANSWERSvariance
which of the following is a continuous random variable? - ANSWERSnumber of students in class
which of the following is true about probability density functions? - ANSWERSit calculates the probability
of a random variable lying within a certain interval
which of the following is true of normal distributions? - ANSWERSmean, median, and mode are all equal
which of the following is true about the classical definition of probability? - ANSWERSif the process that
generates the outcomes is known, probabilities can be deduced from theoretical arguments.
the _______ of a random variable corresponds to the notion of the mean, or average, of a sample. -
ANSWERSexpected value
A regression model that involves a single independent variable is called... - ANSWERSsimple regression
regression models of _________ data focus on predicting the future - ANSWERStime series
In Excel's trendline tool, the value of the ______ gives the measure of fit of the line to the data. -
ANSWERSR-squared
Which of the following is true about the observed errors associated with estimating the value of the
dependent variable using the regression line? - ANSWERSthe errors can be negative or positive
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