Statistical Computing Quiz Form
Please complete all questions below. This quiz tests your knowledge of statistical computing concepts and methods. All questions are required.
Which programming language is most commonly used for statistical computing?
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R
Python
Java
C++
Select all libraries commonly used for statistical analysis in Python.
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NumPy
pandas
scikit-learn
Django
What is the output of the following R code? mean(c(2, 4, 6, 8, 10))
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Given a dataset with 1000 rows and 10 columns, what is the dimensionality?
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Which of the following statements about p-values is correct?
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A p-value measures the probability of observing data as extreme as the sample, assuming the null hypothesis is true.
A p-value is the probability that the null hypothesis is true.
A p-value is always less than 0.05.
A p-value depends only on the sample size.
Write a single line of R code to generate 100 random numbers from a normal distribution with mean 0 and standard deviation 1.
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Match each statistical concept to its correct definition.
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Rows
Definition
Mean
Central Tendency
Dispersion
Correlation
Probability
Standard Deviation
Central Tendency
Dispersion
Correlation
Probability
Pearson's r
Central Tendency
Dispersion
Correlation
Probability
Likelihood
Central Tendency
Dispersion
Correlation
Probability
Which function in Python's pandas library is used to compute the mean of a column?
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mean()
average()
sum()
median()
Select all types of plots that are commonly used to visualize the distribution of a dataset.
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Histogram
Box plot
Scatter plot
Pie chart
Briefly explain the difference between supervised and unsupervised learning.
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