Which answer describes the transformation of f(x)=x^2−1 to g(x)=(x−1)^2−1 ?
1.) a vertical translation 1 unit up
2.) a horizontal translation 1 unit to the right
3.) a horizontal translation 1 unit to the left
4.) a vertical translation 1 unit down

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)