Answer:
Where the mean and the deviation
Since the distribution for X is normal then we can conclude that the distribution for the sample mean is given by:
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:
Where the mean and the deviation
Since the distribution for X is normal then we can conclude that the distribution for the sample mean is given by:
Answer:
x=4
Step-by-step explanation:
6(8) = 48
Question
is -3 a solution of
-3x+5=5x-25
Answer:
<h2>
No, the solution is -15/4</h2>
Step-by-step explanation:
-3x + 5 = 5x - 25
-8x = -30
x = - 30 : 8
x = - 15/4
------------------
Answer:
56
Step-by-step explanation:
El problema se puede transcribir en esta ecuación:
2x + x = 168
siendo x las nectarinas
sumas los términos de x:
3x=168
despejas x:
x = 168 ÷ 3
x = 56
Answer is , Maybe school is not for you.