In regression analysis, what letters are used to represent the values of the independent variable, the dependent variable and thecorrelationcoefficient?

r,t,p

r,t,b

t,a,b

X,Y,p

Y,X,p

X,Y,r

Y,X,r

What is the range of possible scores for Pearson's correlation coefficient?

zero up to 1.0

zero up to 100

-1 up to 1

-100 up to 100

0% up to 100%

zero up to 3.0

-3.0 up to 3.0

To interpret a correlation you should consider

direction, significance, and sample size

direction, significance, and negative

negative or positive, strong or weak, not significant

negative, strong or weak, significant or not significant

positive, strong, and significant

direction, strength, and significance

direction, positive, and significance

A smooth long-term tendency of a time series is known as

seasonal variation

epidic variation

cyclical variation

moving average

religious trend

secular trend

None of the above

A survey question asks people what their annual income is.What is the level of measurement for this variable?

Quantitative

Qualitative

Nominal

Ordinal

Interval

Ratio

None of the above