- #1

penguinnnnnx5

- 36

- 0

## Homework Statement

## Homework Equations

P (|Y - μ| < kσ) ≥ 1 - Var(Y)/(k

^{2}σ

^{2}) = 1 - 1/k

^{2}

??

## The Attempt at a Solution

using the equation above

1 - 1/k

^{2}= .9

.1 = 1/k

^{2}

k

^{2}= 10

k = √10 = 3.162

k = number of standard deviations. After this I don't know where to go.

I don't have a solid understanding of Chebyshev's inequality either.