Answer:
2
Step-by-step explanation:
7x - 2x = 13 - 3
5x = 10
x = 2
Both measurements are correct if you're rounding the dogs height.
But the more precise measurement would be 11 1/4.
Mainly because its a smaller fraction so it has more meaning to it instead of just plain 11
It would get more precise as the fraction got larger
For example.
Not very precise
11, 11 1/2, 11 1/4,
Precise
11 1/8, 11 1/16
Hope this helps!
Brainliest is always appreciated if you feel its deserved!<span />
Answer:
a)
b) r =-0.932
The % of variation is given by the determination coefficient given by
and on this case
, so then the % of variation explained by the linear model is 86.87%.
Step-by-step explanation:
Assuming the following dataset:
Monthly Sales (Y) Interest Rate (X)
22 9.2
20 7.6
10 10.4
45 5.3
Part a
And we want a linear model on this way y=mx+b, where m represent the slope and b the intercept. In order to find the slope we have this formula:
Where:
With these we can find the sums:
And the slope would be:
Nowe we can find the means for x and y like this:
And we can find the intercept using this:
So the line would be given by:
Part b
For this case we need to calculate the correlation coefficient given by:
So then the correlation coefficient would be r =-0.932
The % of variation is given by the determination coefficient given by
and on this case
, so then the % of variation explained by the linear model is 86.87%.
Answer:
d:192
Step-by-step explanation: