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KengaRu [80]
2 years ago
6

How can we ensure that we choose a sample of students that is representative of all 8:00 am classes that take place on a given m

orning?
Mathematics
1 answer:
pentagon [3]2 years ago
8 0

By using a sampling technique  we ensure that we choose a sample of students that is representative of all 8:00 am classes.

There are  varieties of sampling strategies: chance sampling includes random selection, permitting you to make sturdy statistical inferences approximately the complete organization. Non-opportunity sampling entails non-random selection primarily based on convenience or different standards, permitting you to without problems gather records.

Random sampling is part of the sampling technique wherein every sample has an same possibility of being chosen. A sample chosen randomly is meant to be an unbiased representation of the overall population.

explanation;

we conclude the

  • 6 buildings in the college
  • 4 lecture halls in each building
  • 100 students in each lecture hall

Since the students' lecture hallsare on different building the samples are

Dividing the students into groups, the students will be grouped by the buildings of their lecture halls.

The number of students in each building is:

There are 100 students in each building

Then select at random an equal proportion of student from each building let 20 students in each building.

Learn more about Sampling technique here:-brainly.com/question/24466382

#SPJ4

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4x^2−24x
DochEvi [55]

Answer:

See below.

Step-by-step explanation:

4x^2-24x

Find the GCF.

4 - 1, 2, 4

24 - 1, 2, 3, 4, 6, 8, 12, 24

The GCF of x^2 and x is x.

The complete GCF is 4x.

4x(x-6)

-hope it helps

4 0
3 years ago
Suppose a researcher compiled a data set consisting of the following variables for a sample of 100 retired men. For each variabl
kondaur [170]

Answer:

a) Discrete Variable

b) Discrete Variable

c) Discrete Variable

d) Continuous Variable

Step-by-step explanation:

We have to identify the given variable as discrete r continuous.

Discrete Variables:

  • They are expressed in whole numbers.
  • They are counted not measured.
  • They cannot take any value within an interval.

Continuous Variables:

  • They are expressed in decimal numbers.
  • They are measured not counted.
  • They cannot take any value within an interval.

a) The number of countries ever visited

Since number of countries will always be expressed in whole numbers and not decimals. Also, they will always be counted and not measured. Thus, it is a discrete variable.

b) The number of sons

Since number of sons will always be expressed in whole numbers and not decimals. Also, they will always be counted and not measured. Thus, it is a discrete variable.

c) Shoe size

Shoe size are expressed in whole number. The underlying measure is length of feet which is a continuous variable but shoe size are always given in whole number. Thus, they cannot take any value within an interval. Thus, it is a discrete variable.

d) Body temperature

Body temperature can be expressed in decimal. A Body temperature of 42.5 makes sense. Thus, they can take any value within an interval. Also, it is measured not counted. Thus, it is a discrete variable.

8 0
3 years ago
100 IF U GET THIS RIGHT!
Eddi Din [679]

Answer:

Feeling like an addict that ain't had it, up and at it in a minute

If it hadn't been invented, my limit wouldn't be infinite

I'm feeling like an infant in a womb

I'ma be here 'til the tomb

Lately I've been in my room

Lookin' and lookin' at records on the wall

Hold up

4 0
2 years ago
Read 2 more answers
each blade on a windmill is in the shape of a triangle with a base of 7 feet and a height of 4 ft if there are four blades on th
Sunny_sXe [5.5K]

The total area of the blades is the area of a triangle multiplied by 4.

We have then:

A = (4) * (1/2) * (b) * (h)

Where,

b: base of the blades

h: height of the blades

Substituting values we have:

A = (4) * (1/2) * (7) * (4)

Doing the calculation we have that the area of the blades is given by:

A = 56 feet ^ 2

Answer:

The total area of the blades is:

A = 56 feet ^ 2

6 0
3 years ago
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Sally ran 2 1/4 miles in 1/2 hour. What is her speed in miles per hour?
weqwewe [10]
5 miles per hour ;)
Just multiply by 2 to get 5 miles in 1 hour
8 0
3 years ago
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