Question

QUESTION 4 An increase from 10% to 15% is a A 5% increase, and a 50 percentage point increase A 5 percentage point decrease, and a 50% decrease O A 5 percent increase, and a 5 percentage point increase 5 percentage point increase, and a 50% increase QUESTION 5 A measure of central tendency is an estimate of the middle, or center, of a distribution. True False QUESTION 6 The expected value is O The unweighted average of all possible values of a variable O Always equal to the median O A measure of dispersion of a variable O The weighted average of all possible values of a variable QUESTION 7 The median is O The middle value of a distribution O The same as the average O Generally less than the average O Generally greater than the average QUESTION 8 The variance is a measure of O The central tendency of a distribution Whether an expected value is large or small O The strength of a relationship between two variables O How widely dispersed a variable is around the mean

Answer 1

Q4. Option 4
Increase from 10 to 15 percent is a 5 percentage point increase, but it is( (15-10)/10)*100 = 50 percent

Q5. True. Is a central or typical value for a probability distribution

Q6. Option 4.
It is a weighted average of all possible values where the weights are the probabilities of each outcome

Q7. Option 1

Q8. Option 4