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ki77a [65]
3 years ago
14

A population has groups that have a small amount of variation within them, but large variation among or between the groups thems

elves.
The proper sampling technique is:

A. simple random.
B. stratified.
C. cluster.
D. judgment.
Mathematics
1 answer:
Sauron [17]3 years ago
6 0

Answer:

B. stratified.

Step-by-step explanation:

If a population is composed by identifiable groups or strata, with large variations between groups, the stratified sampling should be applied in order to comprehend and represent all of the different groups in the sampling process.

Therefore, the answer is  alternative B. stratified.

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A bank manager is interested in the average length of time that customers are willing to wait in line before they give up and le
Fynjy0 [20]

Answer: The average length of time that the 25 customers waited before leaving the bank.   <u> e. Statistic</u>

The list of times for the 25 customers who left the bank.  <u> f.Data </u>

All of the bank's customers                                         <u> d. Population</u>

The 25 customers that the manager observed leave.         <u> c. Sample</u>

The length of time a customer waits before leaving the bank.  a. <u>Variable.</u>

The average length of time that all customers will wait before leaving the bank <u>a. Parameter</u>

Step-by-step explanation:

A data is a list of observations.

In statistics, a variable is an attribute that defines  a person, place, thing, or thought.

A large group that have similar individuals as per the researcher's point of view is known as population, where its subset is known as sample.

The measure of certain characteristic in population is known as parameter, where for sample it is known as statistic.

8 0
3 years ago
What is 30% of 70. show your work<br>​
mamaluj [8]

Answer: 21

Step-by-step explanation:

we have two simple equations:

1) 70=100%

2) x=30%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

70/x=100%/30%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 30% of 70

70/x=100/30

(70/x)*x=(100/30)*x - we multiply both sides of the equation by

70=3.33333333333*x - we divide both sides of the equation by (3.33333333333) to get x

70/3.33333333333=x

The fore, the answer is 21

8 0
3 years ago
Read 2 more answers
-70+8p-4z identify the terms and the coefficient
fiasKO [112]
8p, -70, and 4 z are the terms and 4z and 8p are coefficient.
3 0
3 years ago
A support cable runs from the top of the telephone pole to a point on the ground 40 feet from its base. If the cable makes an an
kirill [66]
Okay, so this is just a bunch of random information that's eying to trick you. The answer is in the question. "the telephone pole to a point on the ground 40 feet from its base."
8 0
3 years ago
ABCD is a rectangle. The length of AC is 3x - 1. The length of BD is 2x + 5.
antoniya [11.8K]

Answer:

C.13

Step-by-step explanation:

3 0
2 years ago
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