Answer:
Option d (7.84 or less) is the right alternative.
Step-by-step explanation:
Given:
Random sample,
The level of significance,
= 0.95
or,
hence,
The margin of error will be:
⇒
By putting the values, we get
Answer:
20 cats
Step-by-step explanation:
A proportion has to be setup to answer this
5/4 = 25/x
x represents the missing number of cats
This fraction represents the relationship amongst dogs and cats
----
To solve cross multiply
5x = 100
(let me down below if you need an explanation on how to cross multiply)
Divide both sides by 5 in order to get the variable by itself
100/5 = 20
x = 20
The shelter has 20 cats
I think that You add all the ages and then divide by how many people you have so
100:10 = 10 is the mean age I guess?
The graph from following expression given above is a linear plot using MS excel. This plot makes sense as the denominator is a factor of the numerator. This means the degree of the numerator is reduced to a single degree making a linear plot. The plot's equation is y = 2x-4
1:5= 1/5 x 20/20= 20/100
20/100= 0.20
The bag contains 20% of pink marbles.