A fair coin is tossed three times. What is the probability of getting at least one Heads and at least one Tails?A fair coin is tossed three times. What is the probability of getting at least one Heads and at least one Tails?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)