In rolling two dice, what is the probability that the sum of the two numbers on the dice will be 4? A: 1 over 12
B: 3
C: 11 over 12
D: 2 over 3

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints