Answer:
what is the question bro?
Answer:
1
Step-by-step explanation:
m= (y-y1)/(x-x1)
Points are (-10, -20) and (1, -9)
m= (-20+9)/(-10-1)= (-11)/(-11)= 1
m=1 to replace ? mark
Answer:
2
Step-by-step explanation:
We have
n = 4 scores
SS = 48
For this question, we are required to find the estimated standard error
To get this, we first solve for the variance
S² = SS/n-1
= 48/4-1
= 48/3
= 16
Then S² = 16
S = √16
S = 4
Then the estimated standard error is given by:
S/√n
= 4/√4
= 4/2
= 2.
The estimated standard error is 2.
Answer: ![\frac{35-21}{8-4}](https://tex.z-dn.net/?f=%5Cfrac%7B35-21%7D%7B8-4%7D)
Step-by-step explanation:
The slope of a line equals to the difference between points' y-coordinates divided by the difference between their x-coordinates.
That is, if
and
are the point of a line,
Then the slope of the line is,
![m=\frac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
By the given diagram,
,
,
and ![y_2=35](https://tex.z-dn.net/?f=y_2%3D35)
Thus, the slope of the given line
= ![\frac{35-21}{8-4}](https://tex.z-dn.net/?f=%5Cfrac%7B35-21%7D%7B8-4%7D)
⇒ Fourth option is correct.