The standard deviation is the square root of the variance...so that means the variance is the standard deviation squared.
2.3^2 = 5.29 <===
About 400 marbles. You simply set up a proportion and solve it as I did in the photo attached.
Answer:
The answer to your question is 25%
Step-by-step explanation:
Data
Initial price = $2.00
Final price = $2.50
First we subtract the final price to the inicial price
increment = 2.50 - 2.00
= $0.50 It's the amount that the school increases to the community members
Now we use a rule of three to find the percent
$2.00 ---------------------- 100%
$0.50 --------------------- x
x = 0.50 x 100/2 = 50/2 = 25%
Answer:
the truth is that I do not understand your way of expressing yourself but you can talk the truth is that I don't understand your way of expressing yourself but you can speak the language with me in Spanish ok