Examine the formula for the chi-square statistic X^2. a. If two samples are identical, what is the value of X^2? Justify your answer.
b. Why is it necessary to square the difference O - E? Justify your answer by giving an example of what happens if you do not.

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.

Factor the polynomial by its greatest common monomial factor.