In a study of high-school students, a positive correlation was found between hours spent per week doing homework, and scores on standardized achievement tests. the investigators concluded that doing homework prepare students for these tests. does the conclusion follow from the data? answer yes or no, and explain briefly

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock

step-by-step explanation:

a'(12.5,11.25)

slope=(y1-y2)/(x1-x2)