natashalane1193 natashalane1193

01-07-2018
Mathematics

contestada

If the variance of a discrete random variable x is v(x) = 1.6, then v(2x + 3) is

Respuesta :

sqdancefan sqdancefan

01-07-2018

Adding an offset to the data changes the mean, but not the variance. Multiplying the data by a constant changes the variance by the square of that constant.
v(a·x) = a²·v(x)

You will have v(2x+3) = 2²·v(x) = 4·1.6 = 6.4

Answer Link

Otras preguntas

will mark brainliest help Which image is associated with Buddhism?

Which are partial products of 1,262 x 3? A. 6 and 500 B. 15 and 180 C. 600 and 900 D. 180 and 3,000

PLEASEEE HELP THANK UUUU Describe and correct the error a student made when solving the inequality shown. 3x-1>5 3x-1+1>5+1

What techniques were classical Muslim artists best known for? Choose three correct answers. drawing words in creative and decorative ways depicting images of hu

write a paragraph about how you face your greatest challenges one or more type of context clues

Solve (x - 5)^2=3 thank you in advance

Lee estas oraciones y completa la tabla

(b) What does the shaded region represents in the given figure?

Solve for the variables: 10x + 48 = 15x + 36

Most metals are not good conductors of heat. True or False