8 1/3. 60×8=480. 500-480=20. 20 is 1/3 of 60.
Answer:
false
Step-by-step explanation:
P = 3
Step-by-step explanation:
Multiply both sides by 3
48-9p=2p+15
Add 9p to both sides
48=2p+15+9p48=2p+15+9p
Simplify 2p+15+9p2p+15+9p to 11p+15
48=11p+15
Subtract 15 from both sides
48−15=11p
Simplify 48-15 to 33
33=11p
Divide both sides by 11
\frac{33}11=p11/33=p
Simplify 11/33 to 3
3=p
Switch sides
p=3
Kono Dio Da!!!
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)