# Statistics Examples

, ,

Use the formula for the probability of a binomial distribution to solve the problem.

Find the number of possible unordered combinations when items are selected from available items.

Fill in the known values.

Simplify.

Subtract from to get .

Rewrite as .

Reduce the expression by cancelling the common factors.

Cancel the common factor.

Rewrite the expression.

Expand to .

Divide by to get .

Fill the known values into the equation.

Remove parentheses around .

Evaluate the exponent.

Multiply by to get .

Subtract from to get .

Subtract from to get .

Remove parentheses around .

Raise to the power of to get .

Multiply by to get .