How to find mean and standard deviation given mean and standard deviation of each variable?

If you are asked to provide a set of two or more numeric answers, separate them with commas. for example, to provide the year that sputnik (the first satellite to be sent into orbit around the earth) was launched and the year humans first walked on

A cylinder has a radius of 7 cm and a height of 12 cm what is the surface area

cassey brought home 10 flowers on Monday. Tuesday another little boy gave her 35 flowers. how many flowers does she have altogether?

I need to know how to graph (15,45)

Perform the indicated operation 1 2/3 + 5 3/8

6,051 m = __km a. 0.6051 b. 6.051 c. 60.51 d. 605.1

Doug believes that the function y=6 is linear, while Olga believes that it is not linear. Who is right, and why? A Doug is right, because the function cannot be written in the form y = mx + b.

What is 4.27-1.29?

Which equation is 69 is greater than x

If x = 7, y = 1 and 2 = 1, then evaluate the following expression: X - y + z =