CodiW362462 CodiW362462
  • 03-11-2022
  • Mathematics
contestada

if a data set has 25 values and a standard deviation of 9.4 then the variance is a. 88.4 b. 1.9 c.47.0d.17.7

Respuesta :

LudovicJ784137 LudovicJ784137
  • 03-11-2022

by definition the standar deviation is the square root of the variance

[tex]s=\sqrt[]{s^2}[/tex]

if you have the standrar deviation you should do the opposite

[tex](s)^2=s^2[/tex]

replacing in the formula

[tex]\begin{gathered} s^2=(9.4)^2 \\ s^2=88.36 \\ s^2\approx88.4 \end{gathered}[/tex]

the variance is 88.4 aproximately

Answer Link

Otras preguntas

Megan left her bicycle outside on the patio while she went on vacation for several weeks. When she returned, Megan discovered a reddish substance, rust, on the
The euglena's red eyespot is used for _____. photosynthesis binary fission detection of light detection of danger
billy plays outside for a half of hour how mintues billys played outside
describe the stages of volcanic activity
Mosaics are __________________ a. images made with glass that has been colored by metallic salts are pieced together like a collage, and are joined by leading.
I just took the test. The correct answer is FALSE.
how will I use the scientific method to become a better medical professional
Graph the following equation
4/5 of a circle how many degress? Please help me, I just want to check. :)
someone please help me ASAP