A population has a mean of 40 and a standard deviation of 15. a sample of size 100 is taken at random from this population. the standard deviation of the sampling distribution of sample mean equals:

The sum of 2 consecutive numbers is 97. Find the numbers

What is the value of the expression 1/2x (6x9x1) + 15

A playground ball has a diameter of 18 cm. What is the hieght and base of the ball? What is the volume?

The data below shows the age distribution of cases of a certain disease reported during the year at a hospital 34 17 25 37 19 19 27 19 44 24 24 22 32 12 13 16 18 14 12 16 14 17 10 16 20 15 15 10 10 14 17 20 18 19 13 13 B 18 30 24 34 44 31 43 40 28

The penguin exhibit at a zoo has a raised circular island that is surrounded by water. The diameter of the island is 20 meters. One penguin swims half way around the island before hopping out.

What is the factored form of the polynomial? x2 + 9x + 20 (x - 4) (x - 5) (x - 2) (x - 10) (x + 4) (x + 5) (x + 2) (x + 10)

290 pennies are equal to how many dimes

How can I teach surface area better?

What is the pi of S = (Πr^2) + (2Πr) h

If you have 12 friends and make three equal teams, what fraction do you use?