Error is the difference between the actual value and Predicted value and the goal is to reduce this difference.

Data Analytics - Quiz(MCQ)

True

False

Can Not Say

None of the above

Correct Answer : True

Explanation : In statistics, the actual value is the value derived from observation or measurement of the available data. It is also known as the observed value. The expected value is the predicted value of the variable based on the regression analysis.

Linear regression is most commonly used to calculate model error using mean-square error (MSE). MSE is derived by measuring the distance between the observed and anticipated y-values at each value of x and then computing the mean of the squared distances.

Recently Updated in Data Analytics Questions

________ Analysis is used to analyze a system in terms of its requirements to identify its impact on customers’ satisfaction. Fill in the blank.

Impact

Kano

Paretto

RootCause

Correct Answer : Kano

Explaination : The Kano analysis is used to analyze a system in terms of its requirements and identify its impact on customers' satisfaction.

This analysis helps to categorize customer preferences into different types: basic requirements, performance requirements, and excitement requirements.

By understanding these different types of requirements, businesses can prioritize their efforts and focus on delivering features and functionalities that will truly satisfy their customers.

According to a very recent Jaspersoft Survey, what is the most popular big data store?

MongoDB

Hadoop HDFS

Both (A) and (B)

Relational Databases

Correct Answer : Relational Databases

Explanation : The most popular big data store according to the recent Jaspersoft Survey is Relational Databases.

By 2025, the volume of data will increase to_____.

Correct Answer : ZB

Explanation : It is projected that 2.5 quintillion bytes of data are created every day, with the volume of digital data expected to reach Zeta Byte by 2025.