Answer:
Step-by-step explanation:
Given
----- variance
------------ sample
Required
Determine the S.E
The estimated standard error (S.E) for the sample mean is calculated using the following formula:
Where
So:
Hence: the estimated standard error for the sample mean is 2
the answer is A, the first option
<span>A line graph is used to show a trend
over a period of time. It is plotted as a series of points,
which are then joined with straight lines. The ends of the line graph do not have to join to the axes.
</span><span>A scatter plot is a type of plot
or mathematical diagram using Cartesian coordinates to display values
for typically two variables.
The difference between a line graph and a scatter plot is that a</span><span> line graph presents continuous and linked data, while a scatter plot presents unlinked data.</span>
B. 7
49 divided by 7 is 7.
