digital anal

Question 1

What is data analytics?

Answer 1

The process of analyzing data to make decisions

Question 2

Why is data analytics important for businesses?

Answer 2

All of the above

Question 3

Which of these is an example of structured data?

Answer 3

Customer database with names and phone numbers

Question 3

What is descriptive analytics?

Answer 3

Analytics that explains what has happened

Question 4

Which type of analytics predicts future outcomes based on data?

Answer 4

Predictive analytics

Question 5

Big Data refers to datasets that are…

Answer 5

Too large and complex for traditional data-processing methods

Question 5

Which of the following describes prescriptive analytics?

Answer 5

Recommends actions based on data analysis

Question 6

What type of data visualization is best suited for showing parts of a whole?

Answer 6

Pie chart

Question 7

What is the purpose of A/B testing in data analytics?
To compare two versions of a product or feature to determine which performs better

Answer 7

To compare two versions of a product or feature to determine which performs better

Question 8

What type of data is “Gender” in a dataset?

Answer 8

Qualitative

Question 8

What is the significance of data governance in analytics?

Answer 8

To ensure data privacy, security, and compliance

Question 8

What is the first step in the data analytics process?

Answer 8

Data Collection

Question 9

Which of the following is a type of data analytics?

Answer 9

D
A) Predictive Analytics
B) Descriptive Analytics
C) Prescriptive Analytics
D) All of the above

Question 10

Which chart is most commonly used to show trends over time?

Answer 10

Line Chart

Question 11

In data cleaning, which process removes duplicate values in a dataset?

Answer 11

Normalization

Question 12

Which of the following is NOT a form of data visualization?

Answer 12

Base Graph

Question 13

Which chart is best suited for showing the distribution of data across different categories?

Answer 13

Bar chart

Question 14

When creating a histogram, the X-axis represents:

Answer 14

Data values or ranges

Question 14

In a histogram, what does the height of each bar represent?

Answer 14

The frequency or count of data in a specific range

Question 14

If the bars in a histogram are skewed to the right, what does this indicate about the distribution of the data?

Answer 14

Positively skewed distribution

Question 14

When would the median be a better measure of central tendency than the mean?

Answer 14

When data has outliers or is skewed

Question 14

Which measure of central tendency is most affected by outliers?

Answer 14

Mean

Question 15

The median is defined as:

Answer 15

The middle value when data is ordered

Question 16

In a dataset where the mean is greater than the median, what can you infer about the shape of the distribution?

Answer 16

It is positively skewed (right-skewed)

Question 16

When analyzing income data, which measure of central tendency is typically preferred and why?

Answer 16

Median, because it is less influenced by extreme outliers

Question 16

What does the mean of a dataset represent?

Answer 16

The average of all data points

Question 17

Which measure of central tendency divides the dataset into two equal parts?

Answer 17

Median

Question 17

In a dataset with outliers, why might the median be a better measure of central tendency than the mean?

Answer 17

The mean is distorted by extreme values, while the median is not

Question 17

If the mean and median of a dataset are equal, what type of distribution does the data likely have?

Answer 17

Relatively Symmetric

Question 17

Why are measures of central tendency important for summarizing large datasets?

Answer 17

They reduce the complexity of data by providing a single representative value