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A researcher is interested in whether frequencies of ice cream preference are evenly distributed across the three categories of vanilla, chocolate, and strawberry. Use the data in the table below to test the prediction that ice cream preference is evenly distributed. **Report the observed chi-square statistic to 4 decimal places. Ice Cream Preference N Vanilla 94 Chocolate 72 Strawberry 37  

12.  Use the half-angle formulas to determine the exact value of sine, cosine, and tangent of 105°.  Your work for this problem must be clear and legible in your submission. No calculator or decimal answers. 

Round the following value to four decimal places: 3.99999

A _____ variable can theoretically include an infinite number of values between any two points.

Extra Credit (1pt): Write the equation of a circle that is tangent to the lines x=13, x=1, and y=2, and in Quadrant I.     You must have work to earn full extra credit. 

A researcher is interested in whether frequencies of ice cream preference are evenly distributed across the three categories of vanilla, chocolate, and strawberry. Use the data in the table below to test the prediction that ice cream preference is evenly distributed. **Report the observed chi-square statistic to 4 decimal places. Ice Cream Preference N Vanilla 85 Chocolate 61 Strawberry 31  

Variables measured on ordinal, interval, or ratio levels are known as _____ variables, while variables measured on a nominal level are called _____ variables.

Which of the following is NOT true about communication apprehension?

Please submit a pdf of your work for this exam. 

In a study of the effects of exercise on health, the independent variable is _____ and the dependent variable is _____.