SOLUTION: A process is normally distributed with a mean of 200 and a variance of 25. One item is randomly selected, what is the probability of this item having a value greater than 210 ?
Algebra.Com
Question 932570: A process is normally distributed with a mean of 200 and a variance of 25. One item is randomly selected, what is the probability of this item having a value greater than 210 ?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
mean = 200, sd = 5 (√25),
.......
P( x > 210) = P(z > 10/5) = normalcdf(2, 100) = .0228 0r 2.28%
Using a TI calculator 0r similarly a Casio fx-115 ES plus
RELATED QUESTIONS
Scores on a certain exam are normally distributed with a mean of 78 and a variance of 25. (answered by stanbon)
Scores on a certain exam are normally distributed with a mean of 90 and a variance of 25. (answered by rothauserc)
Suppose that the lifespan of a particular type of lightbulb is normally distributed with... (answered by stanbon)
IF THE CHOLESTEROL LEVEL OF MEN IN THE COMMUNITY IS NORMALLY DISTRIBUTED WITH A MEAN OF... (answered by VFBundy)
the weight of apples is normally distributed with mean 80g and standard deviation 10g.... (answered by Boreal)
The breaking strength (in pounds) of a certain new synthetic is normally distributed,... (answered by stanbon)
The breaking strength (in pounds) of a certain new synthetic is normally distributed,... (answered by stanbon)
The breaking strength (in pounds) of a certain new synthetic is normally distributed,... (answered by ewatrrr)
The diameter of a pipe is normally distributed with a mean of 0.4 inch and a variance of... (answered by Fombitz)