You ask 20 random people if their birthday is June. Determine the mean, standard deviation, and variance for this probability distribution. For this problem, assume there are 365 days in a year, and each day is equally likely to be a person’s birthday.

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

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)