starbucks72561 starbucks72561

23-01-2024
Mathematics

contestada

Let one observation equal to the mean is added to n observations. If the variance changes from 78 to 72, then n is equal to:
a) 5
b) 6
c) 7
d) 8

Respuesta :

Otras preguntas

what is the name of a length that is 100 times larger than a millimeter

at what levels do biologists study life???

Without parentheses, the expression 8 plus 30 divided by 2 plus 4 equals 27. Rewrite this expression with parentheses so that it equals 13; then 23

A bus is moving at 24 m/a (t=0) slows at a rate of 4.0 m/s each second; how long does it take the bus to stop? and then how far does it travel while braking? I

how to work out [ (6³-9)÷23] 4

Can some one please help me ???

6 + 4[5 - 3(7 + 2) - 6] =

If you travel at a rate of 45 miles per hour.How many minutes will it take to travel 1 mile

what are three ways a scientist can minimize bias in scientific investigations?

For which achievement is Suleiman the Magnificent best known? (1) building the Dome of the Rock in Jerusalem (2) spreading Christianity into the Balkan Peninsu