Quiz Data Analytics

Which argument is used in barplot() to add axis labels?

Interval estimation gives a more complete picture than point estimation.

A normal distribution has zero kurtosis.

A point estimate provides a range of possible values for a parameter.

Snowball sampling is effective in studying hidden or hard-to-reach populations.

In simple random sampling, every unit of the population has:

A distribution with kurtosis greater than 3 is:

Which one is an example of interval estimation?

Regression is a common technique in predictive analytics.

Which of the following is used to read a CSV file in R?

What does the argument main = "My Chart" do in a base R plot?

If a distribution is symmetrical, its skewness is:

Which function is used to calculate correlation in R?

Estimation in statistics refers to:

Logic-based models are defined using explicit rules and logic statements.

A distribution with a long right tail is said to be:

What is the correct function to create a scatter plot in R?

In stratified sampling, the population is divided into:

Predictive analytics only deals with data from the future

Which of the following is not a type of non-probability sampling?

Quota sampling is a type of probability sampling.

Which of the following is used to assign a value to a variable in R?