SOLUTION: The failure rate for taking the bar exam in central city is 35%. If 250 people take the exam, what are the mean, variance, and standard deviation for the number of failures? With e
Algebra.Com
Question 913775: The failure rate for taking the bar exam in central city is 35%. If 250 people take the exam, what are the mean, variance, and standard deviation for the number of failures? With explanation/formulas please.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
p(fail) = .35, mean = .35(250)= 87.5, Variance = .35*.65(250 ) = 56.875, sd = sqrt(56.875) = 7.5416
RELATED QUESTIONS
Exam scores are normally distributed with a mean of 81 and a standard deviation of 9.... (answered by stanbon)
1. Find the mean of the distribution shown.
x 0 3 5
P(x) 0.36 0.40 0.24
2. The... (answered by solver91311)
Scores on a standardized exam are known to follow a normal distribution with a standard... (answered by Theo)
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)
The chartered financial analyst (CFA) is a designation earned after taking three annual... (answered by Glaviolette)
Katie must take five exams in a math class. If her scores on the first four exams are... (answered by vleith)
If 80% of job applicants are able to pass a computer literacy test, find the mean,... (answered by stanbon)
I recently scored 86% on a midterm exam! If the mean on the exam was 79% with a standard... (answered by Edwin McCravy)