Posted by **Sue** on Sunday, May 2, 2010 at 7:56pm.

I'm confused.Can someone tell me if I have done this correct.I'm trying to get the average using a weighted scale:

TOTAL GRADES: WEIGHT

90% 5%

100% 15%

95% 15%

90% 5%

94.5% 60%

I multiplied the total grade by the percent, then added the percent. But I get 109.20 as a final grade but I know that can be right...please help me. Thanks

- Statistics -
**steph**, Sunday, May 2, 2010 at 8:40pm
you prolly multiplied wrong. 90 * .05

100*.15, 95*.15,90*.05,94.5*.60 then is should all equal out to 94.68

## Answer this Question

## Related Questions

- Math - I'm confused.Can someone tell me if I have done this correct.I'm trying ...
- weighted average? - if you have 70 calls that come in during one minute and 3 ...
- Statistics - Exam Grades. A statistics professor is used to having a variance in...
- elementary statistics - A statistics professor is used to having a variance in ...
- elementary statistics - A statistics professor is used to having a variance in ...
- Economics - I learned that price level is the weighted average of prices of all ...
- math,correction - can someone correct this for me please. Statistics. Sam must ...
- math correction - can someone correct this for me.or teach me if i'm wrong ...
- math - If I have an 85 in a class and I made a 53 on a mid-term, what would my ...
- statistics - {Exercise 3.55} Morningstar tracks the total return for a large ...