Answer:
![y=-3x-17](https://tex.z-dn.net/?f=y%3D-3x-17)
Step-by-step explanation:
To find out the m(slope) of the equation use the formula:
.
Substitute the values:
![\frac{4--2}{3-5}](https://tex.z-dn.net/?f=%5Cfrac%7B4--2%7D%7B3-5%7D)
Combine the values:
![\frac{6}{-2}](https://tex.z-dn.net/?f=%5Cfrac%7B6%7D%7B-2%7D)
Find the value of the fraction:
![-3](https://tex.z-dn.net/?f=-3)
M is -3.
The equation so far is ![y=-3x+b](https://tex.z-dn.net/?f=y%3D-3x%2Bb)
To find the y intercept, substitute one pair of coordinates into the equation and solve for b:
.
We see that b =-17 so the full equation would be:
.
Answer:
The sample size is very large
Step-by-step explanation:
For Incorrect option we have,
When making the comparison between the sample proportion that is 0.201 and the hypothetical proportion that is 0.20. In this way it is possible to conclude that as the sample size increases, it also tends to normal. In this way it can be concluded that it is a non-aberrant sample. The sample proportion and the hypothetical proportion are almost equal.
For correct option we have that
![n=35000](https://tex.z-dn.net/?f=n%3D35000)
![p=0.21](https://tex.z-dn.net/?f=p%3D0.21)
So,
![n*p=7350](https://tex.z-dn.net/?f=n%2Ap%3D7350)
The sample size is greater than 30.
Here, sample size is very large . Hence difference is highly significant.
Answer:
Step-by-step explanation:
<u>Number of pupils can play either instrument:</u>
<u>Number of those can play both:</u>