Explain what each of the following sample correlation coefficients tells you about the realtionship between the x and y values in the sample. a. r = 1 b. r = -1 c. r = 0 d. r = 0.89 e. r = 0.02 f. r = -0.96
a. What relationship exists between the x and y values in the sample?
A. x and y have a weak, positive linear relationship.
B. x and y have a strong, negative linear relationship.
C. x and y have a strong, positive linear relationship.
D. x and y have a perfect, positive linear relationship.
E. x and y have a weak, negative linear relationship.
F. x and y have a perfect, negative linear relationship.
G. x and y are not linearly related.
b. What relationship exists between the x and y values in the sample?
A. x and y have a strong, negative linear relationship.
B. x and y have a perfect, negative linear relationship.
C. x and y have a weak, positive linear relationship.
D. x and y have a weak, negative linear relationship.
E. x and y have a perfect, positive linear relationship.
F. x and y have a strong, positive linear relationship.
G. xand y are not linearly related.

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000