Answer:
The correct answer is D. It is not true that cluster sampling uses randomly selected clusters and samples everyone within each cluster.
Step-by-step explanation:
Cluster sampling is a method of collecting samples and statistical data, by means of which a certain group formed by people, things, events, etc., is taken as a sample, which are not considered individually but as part of a whole, which is in turn a proportional representation of the universality of samples available in the field.
Now, since this type of sampling allows to embrace large groups of sample units, data are not always obtained from all the components of the cluster, but from those necessary to be able to quantify the desired statistics.
Note: Consider all the numeric values are in the fraction form. Like
,
etc.
Given:
A recipe calls for
cup of brown sugar for every
cup of white sugar.
To find:
The number of cups of brown sugar that are required for every cup of white sugar.
Solution:
We know that,
Required brown sugar for
cup of white sugar =
cup
Using this, we get
Required brown sugar for 1 cup of white sugar =
cup
cup
cup
So,
cup of brown sugar is required for every cup of white sugar.
Therefore, the correct option is B.
Answer:
y =
x
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m =
, then
y =
x +c ← is the partial equation
To find c substitute (- 4, - 3) into the partial equation
- 3 = - 3 + c ⇒ c = - 3 + 3 = 0
y =
x ← equation of line
Answer:
0.4
Step-by-step explanation:
2/5 = 4/10
Can you take a closer pic of this