Posted by **Krista** on Thursday, May 30, 2013 at 9:56pm.

Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y.

x 7 7 5 5 7

y 95 90 75 85 95

(a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy).

Incorrect: Your answer is incorrect. . (SS(x))

Incorrect: Your answer is incorrect. . (SS(y))

Incorrect: Your answer is incorrect. . (SS(xy))

(b) Find r. (Give your answer correct to three decimal places.)

Can someone help me and my friend we have worked this out several times come up with the same answers but it is wrong. We would like to see where we are doing it wrong.

## Answer this Question

## Related Questions

- eced - A correlatibas .82 was found betweenen number of hours studied and final ...
- Statistics - Does studying for an exam pay off? The number of hours studied, x, ...
- statistics - Does studying for an exam pay off? The number of hours studied, x, ...
- Math - Does studying for an exam pay off? The number of hours studied, x, is ...
- Math - Does studying for an exam pay off? The number of hours studied, x, is ...
- Statistics - The accompanying data show the number of hours, x, studied for an ...
- statistics - Can someone work this out for me, so I can use as an example to do ...
- Math - Jeremy uses the linear function G=12h+50 to represent the grade, G (in ...
- msth - Professor White asked his students to put the number of hours each ...
- Statistics 1 - Professor White asked his students to put the number of hours ...

More Related Questions