If a set of test scores has a large range but a small standard deviation, describe what this means about students' performance o
1 answer:
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Answer: we should have that:
Step-by-step explanation:
We know that f(x) is an odd function, this means that f(-x) = -f(x)
We know that:
this means that wen we aproximate to zero for the right (the positive side) we have that the value is.
First, this tell us that f(x) can not be a continue function, because of the fact that is odd we will have that when we aproximate the same lim but from the negative side, we will have that:
Well first draw a straight line, then an angle with a compass on both figures ( same distance ) then measure the distance between the 2 intersections and copy it onto your figure. now draw a line through the origin and the 2nd intersection
Answer:
(a) The least-square regression line is: .
(b) The number of households using online banking at the beginning of 2007 is 31.8.
Step-by-step explanation:
The general form of a least square regression line is:
Here,
<em>y</em> = dependent variable
<em>x</em> = independent variable
<em>α</em> = intercept
<em>β</em> = slope
(a)
The formula to compute intercept and slope is:
The values of ∑<em>X</em>, ∑<em>Y</em>, ∑<em>XY</em> and ∑<em>X</em>² are computed in the table below.
Compute the value of intercept and slope as follows:
The least-square regression line is:
(b)
For the year 2007 the value of <em>x</em> is 10.
Compute the value of <em>y</em> for <em>x</em> = 10 as follows:
Thus, the number of households using online banking at the beginning of 2007 is 31.8.
