What is the basis for understanding statistical inference?
a.individuals
b.processes
c.the computer
d.probability
Q. 2
Which of the following is (are) an essential step in making sense of data?
a.Summarizing the data
b.Making inferences and predictions using a limited set of data
c.Gathering the data
d.All of these answers
Q. 3
What do statistical methods allow us to do?
a.They allow us to predict based on smaller samples.
b.They allow us to sometimes control the world around us.
c.All of these answers.
d.They allow us to describe the world around us.
Q. 4
An experiment is defined as
a.a planned activity whose results yield a set of data.
b.the complete collection of individuals or objects that are of interest.
c.a characteristic of an individual.
d.a group of individuals or objects that are of interest.
Q. 5
What is the first and most important step in summarizing data?
a.drawing pictures
b.determine the variability
c.determine the probability
d.calculating an average
Q. 6
Statistics is can be defined as
a.the science of describing data.
b.the science of interpreting data.
c.the science of collecting data.
d.All of these answers.
Q. 7
A local grocery store recorded the age of a sample of 40 customers who purchased groceries at their store. What data is being collected in this study?
a.The number of customers who enter the grocery store.
b.How much money they spent on groceries.
c.The age of the customer.
d.The type of groceries they bought.
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