What is the median of 34, 16, 41, 20, 56, 81, 62, 74, 62, 12, 22, 50
DIA [1.3K]
Answer:
I dont know the answer
Step-by-step explanation:
You would need 20 cups of whole-wheat flour
Reason is you do 16/4 which equals 4
Given 4 you would do 4*5 which will give you 20!
Answer:
x = 2n - 4
Step-by-step explanation:
hope this helped have a great day
Answer:
x ≈ 11.3
Step-by-step explanation:
Using the sine ratio in the right triangle
sin45° = = ( multiply both sides by x )
x × sin45° = 8 ( divide both sides by sin45° )
x = ≈ 11.3
Answer:
And for this case we can use the complement rule and the normal standard distribution of excel and we got:
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 heights of a population, and for this case we know the distribution for X is given by:
Where and
And we select a sample size of n =70
From the central limit theorem (n>30)we know that the distribution for the sample mean is given by:
And we want to find this probability:
And we can use the z score formula given by:
And using this formula we got:
And for this case we can use the complement rule and the normal standard distribution of excel and we got: