jawaher95 jawaher95

22-11-2020
Mathematics

contestada

What is the data value X if its z value is
-2 ,the mean is 27
and the standard deviation is 4

Respuesta :

miaisalpha miaisalpha

22-11-2020

The formula for this type of question is z=x-u/y
z=-2 (z-value)
u = 27 (mean)
y = 4 (standard deviation)

Therefore -2=x-27/4
You now figure this out like a normal equation

4x-2=4 X x-27/4
-8+27= x-27+27
19=x

Therefore the data value of x is 19

Answer Link

Otras preguntas

Which of the following equations is equivalent to the equation 6x – y = 1?A.y = 6x – 1 B.y = 6x + 1C.y = -6x + 1D.y = -6x – 1

need some help plz-(7-9z)+8(3z-4)

The height of a cylinder with a fixed radius of 6 cm is increasing at the rate of 3 cm/min. What is the rate of change of the volume of the cylinder when the h

If an ideal monatomic gas undergoes an adiabatic expansion, in which the volume increases by a factor of 4.0, by what factor does the pressure change? a) 2.1 b)

What is 2 fluid ounces = in cups

Find the limit if it exists. Picture provided

Based on the second law of thermodynamics why must a machine always be less than 100% efficient? A.Heat never moves from cold to hot. B.Heat is never converted

Victims of a famine will often eat unappetizing and nutritionally poor foods simply to relieve their constant hunger. Their behavior is best explained in terms

why you think that the unemployed and those with low income are more likely to batter their loved ones

PLEASE HELP!! 20 POINTS!!! "Ode to nightingale" Why might it be important for the speaker that the nightingale has "never known" about these aspects of human l