Suppose you start at a point, and every minute you flip a coin. If the coin is head you move 1 foot north. If it is tails you stay in the same spot.

At n minutes, what is the exact probability distribution of the number of feet north you have moved.

What is the standard deviation of the number of feet you have moved.

After 3000 minutes what is the approximate probability you’ve moved between 1470 and 1520 feel north?

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?

The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square