Answer: Yes it is a function.
This is because any x input leads to exactly one y output.
The graph passes the vertical line test. It is impossible to draw a single vertical line through more than one point on the parabolic curve.
Answer:
The confidence interval for the mean is given by the following formula:
(1)
Or equivalently:
For this case we have the interval given (3.9, 7.7) and we want to find the margin of error. Using the property of symmetry for a confidence interval we can estimate the margin of error with this formula:
Step-by-step explanation:
Previous concepts
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
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".
represent the sample mean for the sample
population mean (variable of interest)
Solution to the problem
The confidence interval for the mean is given by the following formula:
(1)
Or equivalently:
For this case we have the interval given (3.9, 7.7) and we want to find the margin of error. Using the property of symmetry for a confidence interval we can estimate the margin of error with this formula:
Answer:
Hi! I'm not sure if I'm doing your question correctly, but 12×(-7)= -84.
so, if this is what you meant, it would be negative
Answer:
BRO YOU GOTTA WRITE A QUESTION
Step-by-step explanation:
A regular octagaon has 8 equal sides
so it only makes sense to say that the other side of an octagon would be 4 inches too!
But if you want to know the total length, multiply 8 x 4 = 32 inches!
BUT THIS IS ONLY IF ITS A REGULAR OCTAGON
otherwise it can't be really determined since I don't know its symmetry or the angles!!
Hope I answered your question! :)