Answer:
The square root of 81 is 9
Answer:
(a) σ² = 144
(b) s² = 12
Step-by-step explanation:
(a) Population variance σ² = ∑(X -
)² / N
The arithmetic mean 


σ² = 
= 
= 
= 
σ² = 144
(b) 

= 12
Answer:
A. Metacom
Step-by-step explanation: Metacom, also known as King Philip, leader of the Wampanoag near Plymouth colony, led many other Native Americans into a widespread revolt against the colonists of southern New England in 1675.
4/12 is less than 4/6
4/12 = 2/6
and 2/6 < 4/6
Answer:
9/25
Step-by-step explanation:
Our denominator is the total amount in class. x/25
Our numerator is the total of people are "the probability that a student chosen at random has a cat and a dog" Which is -9.
~~~Hope this helps~~~ :)