Statistics Quiz: Measures of Central Tendency

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Questions and Answers

What was the total score achieved by Adrian Granados in the analysis task?

  • 5 out of 10
  • 1 out of 5 (correct)
  • 2 out of 5
  • 20 out of 100

What percentage of the total score did Adrian Granados achieve?

  • 40%
  • 80%
  • 20% (correct)
  • 60%

How many pages were submitted as part of the analysis task?

  • 5
  • 6 (correct)
  • 3
  • 4

What is the name associated with the submission of the analysis task?

<p>Adrian Granados (C)</p> Signup and view all the answers

Which of the following is NOT part of the provided data?

<p>Submission date (A)</p> Signup and view all the answers

Flashcards

Analysis

The process of breaking down complex issues or ideas into smaller, more manageable parts.

Data analysis

A form of higher-order thinking that requires the use of critical thinking skills to evaluate and interpret data.

Data interpretation

The ability to identify patterns, relationships, and connections within a dataset.

Data-driven insight

A conclusion or inference drawn from data analysis, often presented with supporting evidence.

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Data-driven decision-making

The application of data analysis to solve real-world problems.

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Study Notes

Question 1 Analysis

  • Data Set A has a mean of 5 and a standard deviation of 1.2
  • Data Set B has a mean of 5 and a standard deviation of 2.4
  • Set B is spread out twice as much as Set A

Question 2 Analysis

  • Classroom A ages: 4, 4, 5, 5, 5, 5, 5, 6, 6
  • Classroom B ages: 5, 5, 5, 5, 5, 5, 5, 5
  • The means are different, but the standard deviations are the same. This means the average ages differ between the two classrooms, but the variability (spread) of ages is the same.

Question 3 Analysis

  • Ages of friends: 14, 14, 15, 16, 16
  • Mean age is 15
  • Standard deviation is 0.9
  • In 5 years, the mean will be 20 and the standard deviation will remain 0.9 Adding 5 years to each age simply shifts the entire dataset by 5 years; the spread remains constant.

Question 4 Analysis

  • Data set: 19, 26, 38, 23, 24, 31, 36, 60
  • The calculation of the interquartile range is correct.
  • No errors were made in the steps of determining interquartile range

Question 5 Analysis

  • Data set: 1, 0, 2, 2, 1, 0, 1, 1, 1
  • The mean = 1 (The data in this problem has a simple mean)
  • The first error in the calculation occurs in step 2.
  • The correct step to find the spread is calculating the standard deviation.

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