Answer:
11
Step-by-step explanation:
Hello,
Given the original number n.
Multiply the number by 9.
Add 99.
Divide this sum by 9.
Subtract the original number, n, from the quotient.
Thank you.
30 FREE pts Which equation could have been used to create this function table? A. y = 5x B. y = x + 1 C. y = x + 2 D. y = 2x
2 answers:
We want to find the slope of this function first to help us get our answer.
The slope of a function can be found with the following formula:
Take any two points from the table to plug into the equation. We'll use (1,2) and (4,8):
The slope of our function will be 2.
All of the answers are in slope-intercept form. Slope-intercept form uses the following formula:
m is the slope, and b is the y-intercept of the equation.
We know that our slope is 2. The only answer with a slope of 2 is y = 2x.
The answer is <span>D. y = 2x. </span>
The slope of a function can be found with the following formula:
Take any two points from the table to plug into the equation. We'll use (1,2) and (4,8):
The slope of our function will be 2.
All of the answers are in slope-intercept form. Slope-intercept form uses the following formula:
m is the slope, and b is the y-intercept of the equation.
We know that our slope is 2. The only answer with a slope of 2 is y = 2x.
The answer is <span>D. y = 2x. </span>
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Answer:
Let X the random variable that represent the number of children per fammili of a population, and for this case we know the following info:
Where and
We select a sample of n =64 >30 and we can apply the central limit theorem. From the central limit theorem we know that the distribution for the sample mean is given by:
And for this case the standard error would be:
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".
The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".
Solution to the problem
Let X the random variable that represent the number of children per fammili of a population, and for this case we know the following info:
Where and
We select a sample of n =64 >30 and we can apply the central limit theorem. From the central limit theorem we know that the distribution for the sample mean is given by:
And for this case the standard error would be: