Data Analysis MCQs with answers Page - 2

Here, you will find a collection of MCQ questions on Data Analysis. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. A set of data organised in a participants(rows)-byvariables( columns) format is known as a “data set.”

  • (A) true
  • (B) false
  • (C) ---
  • (D) ---

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Q. A graph that uses vertical bars to represent data is called a ___

  • (A) line graph
  • (B) bar graph
  • (C) scatterplot
  • (D) vertical graph

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Q. ___________ are used when you want to visually examine the relationship between two quantitative variables.

  • (A) bar graphs
  • (B) pie graphs
  • (C) line graphs
  • (D) scatterplots

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Q. The denominator (bottom) of the z-score formula is

  • (A) the standard deviation
  • (B) the difference between a score and the mean
  • (C) the range
  • (D) the mean

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Q. A statement made about a population for testing purpose is called?

  • (A) statistic
  • (B) hypothesis
  • (C) level of significance
  • (D) test-statistic

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Q. If the assumed hypothesis is tested for rejection considering it to be true is called?

  • (A) null hypothesis
  • (B) statistical hypothesis
  • (C) simple hypothesis
  • (D) composite hypothesis

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Q. If the null hypothesis is false then which of the following is accepted?

  • (A) null hypothesis
  • (B) positive hypothesis
  • (C) negative hypothesis
  • (D) alternative hypothesis.

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Q. Alternative Hypothesis is also called as?

  • (A) composite hypothesis
  • (B) research hypothesis
  • (C) simple hypothesis
  • (D) null hypothesis

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Q. What is the first step in the data analysis process?

  • (A) Data visualization
  • (B) Data collection
  • (C) Drawing conclusions
  • (D) Data cleaning

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Q. Which of the following is used to summarize the main features of a dataset?

  • (A) Inferential statistics
  • (B) Descriptive statistics
  • (C) Predictive modeling
  • (D) Machine learning

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