D Question 5 A study of the IQs of husbands and wives obtained the following results: Average IQ Husbands 100 Wives 100 Correlation coefficients r = 0.6. Which of the following is a sketch of the scatter diagram for this data? O 150 100 Wife 50 50 100 150 Husband O 150 100 Wife 60 50 100 150 Husband 150 100 Wife 50 50 100 150 Husband O 150 100 O Wife 50 50 100 150 Husband O None of the above.D Question 6 10 pts Suppose a scattered diagram is for a pair of data {x,y) is plotted, and the scales for the horizontal and vertical scales are chosen such that I 1 unit on horizontal scale = 1 SD for x-values I 1 unit on vertical scale = 1 SD fury-values Decide each of the following statements is true or false. I. The slope for the SD line is either 1 or -1. II. The SD line and the regression line fory on x intersects at the point of average. Ill. The SD line is a smoothed version of the graph of averages. IV. The regression line for y on x can be vertical. V. The stronger the correlation between x and y is, the closer the SD line and the regression lines are. Question 7 Three cards will be dealt from a well-shufed deck. What is the chance of getting an ace or a king among the 3 cards? (A deck has 52 cards, of which 4 are aces and 4 are kings.) i 8 51+50 1 052+