Max bought some tins and decided to fill them with brownies to give to his friends. Max baked
495 brownies. He put 8 brownies in each tin and made sure to fill as many tins as he could.
How many brownies did Max have left over?

7

Step-by-step explanation:

Assuming he didn't put the brownies in a spare tin, you would just have to divide 495 by 8 and the remainder would be the answer.

1. χ² = 18.548

2. χ² = 23.685

Step-by-step explanation:

1. Confidence level is 99% (α = 0.01), but we're only interested in the left half, so α/2 = 0.005.  Degrees of freedom are 7−1 = 6.  Looking up in a chi square table, χ² = 18.548.

2. Confidence level is 90% (α = 0.10), but we're only interested in the right half, so α/2 = 0.05.  Degrees of freedom are 15−1 = 14.  Looking up in a chi square table, χ² = 23.685.