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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 99 Chocolate 68 Strawberry 30  

Eliminate the parameter and write the corresponding rectangular equations who graph represents the curve.  Adjust the domain of the resulting equation, if necessary.

Based on the stem-and-leaf plot below, representing scores on an exam, what is the sample size? 10 : 0  9 : 2  8 : 233  7 : 5  6 :  5 : 00555588  4 : 222  3 : 666  2 : 777  1 : 7  0 : 8 *each stem represents the hundreds and tens place; each leaf represents the ones place

9. A plane flies 500 kilometers with a bearing of N 44° W (316°) from Naples to Elgin.  The plane then flies 720 kilometers from Elgin to Canton (Canton is due west of Naples).  Find the bearing of the flight from Elgin to Canton.   Special Notes: Answer should be either an integer or rounded decimal to the hundredths place.  Work is required. Please do not include the degree symbol as Canvas will automatically mark it incorrect.

A stem and leaf plot is useful because it combines features of both a _________ and a(n) _________.

6. Please solve the following triangle using the given information.   B = 45°      b = 16cm      a = 18cm     Special Notes: Answers should be either an integer or rounded decimal to the hundredth place.  Work is required. Please do not include the degree symbol as Canvas will automatically mark it incorrect. 

The sum of the frequencies in the corresponding row or column are referred to as:

In a chi-square test of independence, the null hypothesis states that  ______.

What is the relative frequency associated with a score of 9 in the frequency distribution below? X f 10 2 9 3 8 3 7 5 6 2 5 3 4 0 3 2

If you were interested in studying the effects of varying preparatory instructions on the perception of pain during an injection, the instructions would be a(n) _____ variable and the amount of perceived pain would be a(n) ____ variable.