Judgmental sampling is...

A non-probability sampling technique.

The process of collecting data.

What is the first step in finding out the median and mode?

Arranging data into numerical order.

Range is calculated by...

Subtracting the lowest score from the highest score.

When the population are less likely to be in the sample.

a score which is extremely high/extremely low when compared.

a value that deviates away from the average.

Random sampling is sampling that...

Ensures population has equal chance of being selected.

Cumulative frequency is...

A running total of the frequency.

A group of people selected from a population to be surveyed.

Mean is calculated by...

Adding the up the scores and dividing by total scores.

When surveying the whole population.

Central tendency refers to...

A score where the centre of the distribution is located.

Convenience sampling is...

Selecting a sample at your convenience.

A frequency polygon is...

good for displaying cumulative frequency.

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Statistics and Probability

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Questions 27

Answers

1
What is the range; median; mode of the following data set? 1,2,2,1,3,2,4,6,5,4,3.
5; 3; 2
2; 3; 5
5; 2; 3
3; 2; 5
2
Judgmental sampling is...
based on how likely they are to be given a census.
A probability technique to sample the survey.
A non-probability sampling technique.
A sample who is chosen for the purpose of the survey.
3
What is a survey?
The process of collecting data.
Finding things out from the population.
The process of distributing data.
Interviewing the whole population for data sets.
4
What is the first step in finding out the median and mode?
Arranging data in descending order.
Arranging data into descriptive order.
Arranging data into numerical order.
Arranging data into odd and even numbers.
5
The Y-axis on a histogram corresponds to...
The Frequent amount of surveys.
The fracturedcy
The amount of people in the population.
The frequency.
6
Which of these two are affected by an outlier?
Range; Median
Median; Mode
Mode; Mean
Mean; Range
7
Range is calculated by...
Subtracting the lowest score from the highest score.
Subtracting the highest score from the lowest score.
the value that occurs most often.
Adding up the total scores and dividing by amount of scores.
8
When the data is numerical, it is?
represented in numbers.
represented using symbols.
represented using numbers and words.
represented in words.
9
Sampling bias is...
When the population cannot be chosen for the sample.
When the population is included in the sample.
When the sample is chosen from the population.
When the population are less likely to be in the sample.
10
When graphing data, our preferred graph is...
A histogram
A hiscogram
A line graph
A bar graph
11
An outlier is...
a score which is extremely high/extremely low when compared.
a score which is extremely high or extremely cool.
a score which is extremely low or over 100.
a score which is extremely tall or extremely short.
12
Anomaly is...
also known as an outsider.
lies above the centre of the distribution.
a value that deviates away from the average.
not an outlier, but should be.
13
Random sampling is sampling that...
Ensures population has equal chance of being selected.
uses an app.
ensures all answers are equal.
uses random words to select people.
14
An anomaly could be due to...
Answers that are closed.
Numerical data.
Mistakes or unusual answers.
Answers that are open.
15
Cumulative frequency is...
A running total of the cumulation.
A total of all desired answers.
A running total of the outlier.
A running total of the frequency.
16
What is a sample?
A group of people selected from a population to be surveyed.
A group of the surveyed people to be used in experiments.
A measure of central tendency.
A fragment of something.
17
Mean is calculated by...
The most reoccurring number.
Taking the highest score from the lowest score.
Adding the up the scores and dividing by total scores.
Finding the middle number.
18
When grouping categories to condense data, they are called...
Glass-intervals
Crass-intervals
Grass-intervals
Class-intervals
19
Median is caluculated by...
The most reoccurring number.
Finding the middle number.
Taking the lowest from the highest score.
Adding up all the numbers.
20
What is a census?
When surveying the whole population.
A test.
When a test is aimed at everybody in the room.
When the population want to take part in a survey.
21
Central tendency refers to...
A score located in the centre of the upper quartile range.
A distribution with an extremely high score.
A score where the centre of the distribution is located.
A distribution with a low score.
22
Descriptive data is data that is?
Represented in numbers and words.
Represented in words.
Is described.
Represented in numbers.
23
Mode is calculated by...
Taking the highest number from the lowest number.
Taking the lowest number from the highest number.
The most reoccurring number.
Finding the lowest number.
24
When organising data, we use...
A low-frequency table.
A frequency table.
A high-frequency table.
A frequent table.
25
Convenience sampling is...
Selecting a population at random.
Selecting a sample that is right.
Selecting a population that is convenient.
Selecting a sample at your convenience.
26
A frequency polygon is...
Can tell you how many categories you have.
Lines that connect the x-axis to the y-axis.
Lines that follow dots on the bar graph.
good for displaying cumulative frequency.
27
Which one of these measures of central tendency considers every number in its calculation?
Median
Range
Mean
Mode

Statistics and Probability Flashcards | StudBud