Answer:
24/4
Step-by-step explanation:
all you have to do is multiply 4x6=24
Answer:
V = D/M
Step-by-step explanation:
divide both sides by M to isolate V
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)
1) 90/257 * 100
900/257
= 35.0%
It means, 90 is 35% of 257.
Hope this helps! Do all the others in same manner!!
2) 12/24 * 100 = 1200/24 = 50%
3) 25/208 * 100 = 2500/208 = 12.01%
4) 60/188 * 100 = 6000/188 = 31.91%
5) 24/44 * 100 = 2400/44 = 54.54%
Hope this helps!
So we use 80% to multiply 20,000
we get 16000
the answer is just 16,000