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WorksheetsStatistics Chapter 1
Total questions: 90
Worksheet time: 5hrs 30mins
What is the study of the collection, organization, analysis, interpretation, and presentation of data.
(a)
A branch of mathematics that deals with the scientific collection, organization, presentation, analysis, and interpretation of numerical data in order to obtain useful and meaningful information.
(a)
Statistics are used as a basis for making decisions.
True
False
A subgroup of the population that will be studied in detail is called a
(a)
The characteristics of the elements in a population or a sample under a study is called a __________
Population
Sample
Variable
Sample unit
Between a Population and Sample: which size is bigger ?
Population
Sample
Both can be the same
Not enough information
If a study collects data from an entire population, the measure obtained is called:
A statistic
A parameter
A sample
A variable
Which term describes a numerical summary of a sample?
Parameter
Statistic
Population
Census
The population mean income of all workers in Malaysia is an example of:
a sample statistic
a parameter
an estimate
a variable
Identify whether the given statement is a parameter or statistic.
Parameter
Statistic
A parameter is a descriptive measure of population.
TRUE
FALSE
Average age of students in East High School. This statement describes a _____.
PARAMETER
STATISTICS
Identify whether the given statement is a parameter or statistic.
Parameter
Statistic
Identify whether the given statement is a parameter or statistic.
Parameter
Statistic
A recent survey of a sample of 250 high school students reported the
average weight of 54.3 kg. This statement describes a _____.
PARAMETER
STATISTICS
Number of senior high schools in Region 3. This statement describes a _____.
PARAMETER
STATISTICS
A population is a collection of all individuals, objects, or measurements of interest.
True
False
A statistic is a number which describes a sample.
TRUE
FALSE
These are the two types of statistics:
Discrete and Continuous
Population and Sample
Descriptive and Inferential
Mean and Standard deviation
How do descriptive and inferential statistics differ?
Descriptive statistics are more computationally sophisticated than inferential statistics.
Inferential statistics are more computationally sophisticated than descriptive statistics
Descriptive statistics only attempt to describe data, while inferential statistics attempt to make predictions based on data.
Inferential statistics only attempt to describe data, while descriptive statistics attempt to make predictions based on data.
The main purpose of descriptive statistics is to:
Summarize data in a useful and informative manner.
Make inferences about a population.
Determine if the data adequately represents the population.
Gather or collect data.
Descriptive statistics are used to find out something about a population based on a sample.
True
False
Tell if the statement if Descriptive or Inferential
The chances of you getting a new car is about the same as passing your math class.
Descriptive
Inferential
Tell if the statement if Descriptive or Inferential
The Senior Citizens that live in Pekanbaru have better memories than the ones that live in Padang.
Inferential
Descriptive
A recent study showed that eating garlic can lower blood pressure.
Inferential
Descriptive
The average number of students in a class at White Oak University is 22.6
Inferential
Descriptive
A recent study showed that eating garlic can lower blood pressure.
Inferential
Descriptive
The average salary of the graduates of the class of 1980 is $32,500.
It is predicted that the average number of automobiles each household owns will increase next year.
Inferential
Descriptive
10% of college students are predicted to travel out the country during spring break.
Inferential
Descriptive
What are the 4 levels of data?
Nominal, ordinal, interval, and ratio
Nominal, discrete, continuous and ratio
Discrete, continuous, qualitative and quantitative
Nominal, ordinal, discrete and continuous
Determine the type of data produced from this questions?
Qualitative
Quantitative Continuous
Quantitative Discrete
The number of children in a family is a discrete variable.
True
False
A survey includes a question regarding marital status that has the following responses: single, married, divorced, separated, or widowed. What is the scale of measurement for this question?
Ratio
Interval
Ordinal
Nominal
What is the scale of measurement produced from this questions?
Nominal
Ordinal
Interval
Ratio
What is the scale of measurement produced from this questions?
Nominal
Ordinal
Interval
Ratio
What is the scale of measurement produced from this questions?
Nominal
Ordinal
Interval
Ratio
Which questions will produced ordinal scale?
Determine the type of data produced from this questions?
Qualitative
Quantitative Continuous
Quantitative Discrete
What is the type of data produced from this questions?
Qualitative
Quantitative Continuous
Quantitative Discrete
Determine the type of data produced from this questions?
Qualitative
Quantitative Continuous
Quantitative Discrete
Ages of students in a statistics class
Nominal
Ordinal
Interval
Ratio
Temperatures of 22 selected refrigerators
Nominal
Ordinal
Interval
Ratio
The number of hours you spent studying each day during the past week
Nominal
Ordinal
Interval
Ratio
Your friend's score on an intelligence test
Nominal
Ordinal
Interval
Ratio
You were giving a movie review for a favorite movie you watched. What type of sources did you created?
PRIMARY SOURCES
SECONDARY SOURCES
What is a primary source?
A source created by someone who was there at the time of an event.
A source created by someone who was NOT there at the time of an event.
What is a secondary source?
A source created by someone who was there at the time of an event.
A source created by someone who was NOT there at the time of an event.
Wikipedia
Primary
Secondary
The work you've completed in class.
Primary
Secondary
A source usually created at the time in question that provides firsthand evidence. Examples include newspaper articles, photographs, diary entries, interviews and financial records.
Primary Source
Secondary Source
Bias
Opinion
A source that was not created at the time being studied, but instead uses sources that were created at that time as evidence to draw conclusions. Scholarly books and articles are examples.
Primary Source
Secondary Source
Opinion
Source
What is the difference between Non- Probability and Probability sampling methods?
probability gives the subjects of the population an equal chance of being selected and non- probability does not
Non-Probability gives the subjects
of the population an equal chance of being selected and probability does not
What are the types of probability sampling?
Simple Random, Stratified, Cluster & Convenience
Stratified, Simple Random, Quota & Systematic
Systematic, Simple Random, Cluster & Stratified
What are the types of non probability sampling?
judgement , cluster and convenience
Judgement, systematic & convenience
Judgement and convenience
systematic and cluster
What kind of sample technique is the following:
Question everyone in the cafeteria.
Convenience Sampling
Simple Random Sampling
Systematic Sampling
Sample
It is a sampling method in which not all members of the population have an equal chance of participating in the study.
Probability Sampling
Non-Probability Sampling
3. What are the two main techniques in sampling ?
A. Random and Stratified
B. Simple and Complex
C. Probability and Non-Probability
D. Experimental and Non-Experimental
Interview every 10th student who enters the school in the morning.
simple random
voluntary response
systematic
convenience
Marianne wanted to know students' opinion on the new schedule at school. She survey's the first 30 students who come into her class.
Convenience Sampling
Systematic Random Sampling
Simple Random Sampling
Volunteer response
A teacher splits her classes up by period. She then randomly picks 3 students from each period to do a survey.
Stratified.
Systematic
Cluster
Biased.
A teacher wants to know how well her students are doing on a topic. She randomly picks one class to survey.
Simple Random
Cluster
Stratified
Systematic
To obtain a sample of 10 books in the store, the manager walked to the first shelf next to the cash register to pick the first 10 books on that shelf. This is an example of a
systematic sample.
simple random sample
stratified sample.
convenience sample.
What kind of sample technique is the following:
Question everyone in the cafeteria.
Convenience Sampling
Simple Random Sampling
Systematic Sampling
Sample
A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She selects the five closest to her desk.
Simple random
Voluntary
Convenience
Systematic
A study in which the researcher simply watches the subjects or asks questions but does not impose any sort of treatment.
observational
experimental
A controlled study in which the researcher attempts to understand cause and effect relationships. The study is controlled in the sense that the researcher controls how subjects are assigned to groups and which treatments each group receives
observational
experimental
What kind of study is this?
Subjects were randomly assigned to two groups. One group was given a new medicine and the other group was given a placebo. After 6 months, the number of infections in each group was compared.
observational
experimental
What kind of study is this?
A researcher finds that people who are more hostile have higher total cholesterol levels than those who are less hostile.
observational
experimental
To test the effects of breakfast on grades I ask my students if they ate breakfast and then compare the breakfast eaters grades to the non-breakfast eaters. This is an example of:
Observational study
Experiment
One group of subjects was given an herbal supplement and another group was given a placebo. After one year, the number of illnesses each group had was compared.
Observational Study
Experiment
A professor finds that people who are obese have higher cholesterol levels than those who are not obese.
Observational Study
Experiment
A psychologist designed a study to test the effects of cell phone use on driving safety. Participants were randomly assigned either to drive an automobile simulator while talking to a friend on a cell phone or to drive a simulator without talking on a phone.
Which type of research does the scenario describe?
Experiment
Observation
To test the effects of breakfast on grades I ask my students if they ate breakfast and then compare the breakfast eaters grades to the non-breakfast eaters.
This is an example of:
Observational study
Experiment
a variable that is not affected by anything that you, the researcher does
Independent variable
confounding variable
dependent variable
lurking variable
