teresajohnson8875 teresajohnson8875

08-05-2024
Mathematics

contestada

If the mean and coefficient of variation of the marks of n students are 20 and 80, respectively, what will be the variance of their marks?
a) 20
b) 400
c) 1600
d) 6400

Respuesta :

Otras preguntas

Explain how donalbains statement that there's daggers in men's smiles relates to the son's desicion to flee

Housing costs in most countries in western europe take ____ percent of family income.

Not everyone thinks they have rhythm / dancing can be a fun and active hobby. Not everyone thinks they have rhythm, and dancing can be a fun and active hobby. N

What most concerned the United States about Panama's Omar Torrijos Herrera?A.) his oppressive methods in keeping powerB.) his desire to control the Panama's Can

A microbe is discovered growing beside a deep sea thermal vent near the Galapagos Islands. When researchers bring a sample up to the surface and try to grow it

What is the value of y? Plz helppp someone

What would the electrostatic force be for two 0.005C charges 50m apart?

What are some leading hypotheses (informed theories) about how our species emerged? How are humans different?

find the value of x^3+y^3+15xy-125 if x+y=5

How many liters of a 80% acid solution must be mixed with a 15% acid solution to get 585 L of a 70% acid solution?