Thursday
July 24, 2014

Homework Help: Statistics

Posted by Tom on Sunday, May 26, 2013 at 12:06pm.

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.)
My answers were (a) 100.9, 19640 and 1396. (B) 7.04 But wrong can someone help????

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

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 PLEASE help - Does studying for an exam pay off? The number of hours ...
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 - Does studying for an exam pay off? The number of hours studied, x, is ...
Statistics 1 - Professor White asked his students to put the number of hours ...
statistics - The data below are the final exam scores of 10 randomly selected ...
msth - Professor White asked his students to put the number of hours each ...
statistics - 12. A statistics student received a grade of 85 on a statistics ...

Search
Members