SOLUTION: #19 Suppose X is a random variable with mean μ and standard deviation σ. If a large number of trials is observed, at least what percentage of these values is expected to

Algebra ->  Probability-and-statistics -> SOLUTION: #19 Suppose X is a random variable with mean μ and standard deviation σ. If a large number of trials is observed, at least what percentage of these values is expected to       Log On


   

Question 1118918: #19 Suppose X is a random variable with mean μ and standard deviation σ. If a large number of trials is observed, at least what percentage of these values is expected to lie between μ − 2σ and μ + 2σ? (Round your answer to the nearest whole number.)
at least %
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Between -2sd and +2sd is 95.44% or 95% of the values.