Sunday

April 19, 2015

April 19, 2015

Posted by **Hemant** on Saturday, April 17, 2010 at 1:07am.

- MAth -
**Damon**, Saturday, April 17, 2010 at 7:40amsigma = sqrt(25) = 5

64 - 59 = 5

so we want to know what percent scored 1 sigma or more above mean.(z=1)

well .5 or 50% score between mean and infinity

and given is .3414 or 34.14% score between mean and z = 1

so

50-34.14 = 15.86 % or 79 score 64 or above

Now 69 is 2 sigma above (z=2) and 54 is 1 sigma below

so we want between z = -1 and z = +2

well we know that 34.14% are between z=-1 and mean and .4773 or 47.73^ are between mean and z=2

so

34.14 + 47.73 = 81.87 % are between

.8187 * 500 = 409

american government - Campaign spending tends to be greatly more important: a)...

Government US - Campaign spending tends to be greatly more important a. for ...

Math - In an examination, 1/5 of the candidates failed. It is known that 240 ...

Statistics Help - Six candidates for a new position of vice-president for ...

Math - 60% of candidates who took an examination passed .if 10 of the candidates...

statistics - Membership in Mensa requires an IQ score above 131.5. Nine ...

math - In a recent civil service examination, 1/8 of the candidates failed the ...

government - Campaign spending tends to be greatly more important: A)For ...

math - Four candidates are running for president of the student council. Three ...

Math - Four candidates are running for president of the student council. three ...