jmartinez2257 jmartinez2257
  • 09-05-2017
  • Mathematics
contestada

For a distribution with a mean of 80 and standard deviation of 10, at least what percentage of values will fall between 60 and 100 ?

Respuesta :

mreijepatmat
mreijepatmat mreijepatmat
  • 18-05-2017
Find the Z score of both:
 Z =(X-μ)/σ

Z₁ = (60-80)/10 ==> -2

& Z₂ =(100-80)/10==>+2


& you will find on the Z score tables that the probability to be between
60 & 100 is 0.95 or 95%
Answer Link

Otras preguntas

How do do number 6? I don't get it.
Which type of money is based only on faith
"There were sharp pains, and sudden dizziness, and then PROFUSE bleeding at the pores..." 1 point A. Excessive B. Dangerous C. Sudden D. Unexplained
How do do number 6? I don't get it.
ax - c= -bx + d equations for X
The contender chapter 6 tell me some questions I could wright please
Why is science a continuous progression of study
Mark got a 20% raise for his salary. If this salary was $1,800, what is his new salary
In Verdi's La Traviata, Violetta sings _______ when unsure of herself. A. in recitative B. an aria C. in a lower key D. a virtuoso
What does the passage tell you about how the author thinks some people perceive the youths in foster care?
good job