0.1 Of the three sets of data that follow, which sample shows the strongest relationship? Which sample shows the weakest relationship? Give reasons for your answer. (3 points). Sample A Sample BSample C X Y X Y X 1' l 5 l 5 l 5 l 5 I 6 l 6 l 5 2 7 2 5 2 'T 2 8 2 2 7 2 9 3 6 3 9 3 I0 3 5 3 9 3 ll 4 6 Q.2 In a condition of an experiment, a researcher obtains the following creativity scores: 3210748664 In terms of creativity, interpret the variability of the data using the following: a. The range. (1 point). b. The variance. (3 points). c. The standard deviation. (2 points). d. If you could test the entire population, what would you expect to be the typical, most common creativity score? (1 point). (2.3 A researcher obtained the following data: Seoref 25 4 24 23 22 2: 20 19 18 17 UI-b-UNMIWGKO'U! a. Compute the relative frequency and cumulative frequency of each score (2 points). b. How would you check the relative frequencies are correct? (1 point). c. How would you check that the cumulative frequencies are correct? (1 point). Q.4 a. In a researcher's normal distribution, 35% of the area under the curve is to the right of the score of 70. At what percentile is 70? (1.5 points). b. The middle score in the distribution is 60. What is the percentile of this score? (1.5 points). c. What is the relative frequency of scores between 60 and 70? (2 points). C. what is the relative frequency of scores between ov and 70? (2 points). Q. 5 a. What does a z-score transformation tell you? (2 points). b. What factors determine the absolute value of the z-score? (2 points). c. Of the z-scores -2.3, +1.0, +0.9, and -0.6, which z-score corresponds to the smallest raw score and why? (2 points). FORMULA SHEET