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Sampling Techniques and Descriptions

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

Mrs. Horn samples her class by selecting every third person on her class list. Which type of sampling method is this?

a)

Simple

b)

Systematic

c)

Stratified

d)

Quota

2.

Farmer Joe separates his farm into 10 regions. He then randomly selected 5 trees from each region to estimate the number of apples produced on his apple tree farm. This is _____________ sampling.

a)

Quota

b)

Systematic

c)

Stratified

d)

Simple

3.

When one examines the entire population instead of a subgroup of the population, this is called a ____________.

a)

Sampling

b)

Census

c)

Bias

d)

Random

4.
To study the amount of time students spend doing homework each day, use a random number generator to select 25 students from the student enrollment database to survey.
a)
Convenience Sample
b)
Simple Random Sample
c)
Stratified Random Sample
d)
Interval Sample
5.

What type of sampling is this? A journalist asks his family how they feel about water pollution.

a)

Random sample

b)

Convenience sample

c)

Stratified Random sample

d)

Census

6.

What type of sampling is this? Soybeans are planted on a 48-acre field. The field is divided into one acre subplots. A sample of plants is taken from each subplot to estimate the harvest.

a)

Random sample

b)

Convenience sample

c)

Stratified Random sample

d)

Census

7.

What type of sampling is this? A journalist interviews all 123 people after they leave a restaurant and asks them how confident they are that the food is safe.

a)

Random sample

b)

Convenience sample

c)

Stratified Random sample

d)

Census

8.

Identify the population being studied.


The heights of 13 out of 35 corn plants at Mr. Lonardo's greenhouse.

a)

All corn plants at Mr. Lonardo's greenhouse.

b)

The 13 corn plants at Mr. Lonardo's greenhouse.

c)

All corn plants in greenhouses.

9.

Determine whether the statement describes a population or a sample.


The types of cars of all the employees at a software company.

a)

Population

b)

Sample

10.
The number of orange Skittles in a bag. 
a)
Discrete
b)
Continuous
11.
The number of suitcases lost by airlines. 
a)
Discrete
b)
Continuous
12.
Adam earns $10 for each car he washes.
a)
Discrete
b)
Continuous
13.
Graph of the growth of a plant for the next 30 days. 
a)
Discrete
b)
Continuous
14.
Joe is losing an average of .5 pounds a week.  Is this continuous or discrete data?
a)
Discrete
b)
Continuous
15.
The time it takes for a light bulb to burn out. 
a)
Discrete
b)
Continuous
16.

A textbook on Astronomy contains the following information about the Sun. Which of the four statistics is discrete?

a)

Number of solar eclipses in the 20th century

b)

Surface temperature

c)

Mass

d)

Distance from Earth

17.

Which of the following are NOT continuous data?

a)

Time taken to drive from Paris to Lyon

b)

Volume of win produced by French vineyards in one year

c)

Population of France

d)

Speed of a TGV express train

18.

Which of the following is an accurate description of the distribution?

a)

The distribution is symmetric

b)

The mean is 100

c)

The distribution is negatively skewed

d)

The distribution has a gap from 50 to 70

e)

The distribution is positively skewed

19.

Determine whether the represented data is symmetric, positively or negatively skewed

a)

Negatively Skewed

b)

Symmetric

c)

Positively Skewed

d)

No enough information to determine

20.

Errors in a study resulting from the way the sample was chosen are called ____________________.

a)

Sampling Error(s)

b)

Non-Sampling Error(s)

c)

Processing Error(s)

d)

Bias