Answer:
Down here VVVVVVVV
Step-by-step explanation:
The formula for slope is rise/run there a whole lot of variations of it tho see
(Srry abt my hand writing XD)
rise is basically how far away are the 2 y values from each other
(It will always be positive btw mate.
In this case the rise would be 5
because you need to move up 5 spaces to reach 3 from -2
Now the run which is how far away the 2 x values are from each other.
In this case it would be 4
because you need to move 4 spaces from 3 to reach 7
so it would the slope would be 5/4 :)
This may not be right but you can get the just of how to do it hopefully
Im learning this right now too XD
Answer: good chance im wrong idk but from what i understand id go with (B.) but dont give brainliest till you know its right
Answer: 5 is the range.
Step-by-step explanation:
You have to subtract the lowest input number from the highest input number to find the range:
7 - 2 = ?
= 5
The range is 5.
I hope I helped and have a great day! ^-^
Answer:


![Interval = [666.78, 781.62]](https://tex.z-dn.net/?f=Interval%20%3D%20%5B666.78%2C%20781.62%5D)
Step-by-step explanation:
Given
The data for 25 undergraduates
Solving (a): Range and Standard deviation
The range is:

From the dataset:


So:



The standard deviation is:

First, calculate the mean



So, the standard deviation is:




Solving (b): The interval of the 95% of the observation.
Using the emperical rule, we have:
![Interval = [\bar x - 2*\sigma, \bar x+ 2*\sigma]](https://tex.z-dn.net/?f=Interval%20%3D%20%5B%5Cbar%20x%20-%202%2A%5Csigma%2C%20%5Cbar%20x%2B%202%2A%5Csigma%5D)
![Interval = [724.2 - 2*28.71, 724.2 + 2*28.71]](https://tex.z-dn.net/?f=Interval%20%3D%20%5B724.2%20-%202%2A28.71%2C%20724.2%20%2B%202%2A28.71%5D)
![Interval = [666.78, 781.62]](https://tex.z-dn.net/?f=Interval%20%3D%20%5B666.78%2C%20781.62%5D)
Answer:
You can tell that the maximum value that attains is rough.
Rewriting in vertex form. This tells us that the maximum of is.
So has the greater maximum.
Step-by-step explanation: