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Grade 9 _Unit 1_01_Diagnostic Test

Last updated over 2 years ago
15 questions
Required
3

There are two methods of data collections are by Census and Sample. Please move the following items into a relevant method box.

  • Whole population
  • Quicker
  • It can involve some errors
  • Expensive
  • Time consuming
  • A part of population
  • Census
  • Sample
Required
1

A sample is more time and cost efficient compared to a census because it involves less data collection.

Required
1

A sample is always better than a census because it represents the overall population more accurately.

Required
4
  • Quantitative Data
  • Qualitative Data
  • Discrete Data
  • The number of text messages you send in a day
  • The breeds of horses
  • The heights of students in your class
  • Continuous Data
  • The pulse rates of horses at the end of a race
  • The speeds of cars passing through an intersection
  • The most popular candidate for the next election in your country
  • Categorial Data
  • Numerical Data
Required
1

Numerical data can be divided into discrete and continuous data.

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1

What does the 'mean' in statistics refer to? (2 Answers)

Required
1

What does the 'range' in statistics refer to? (2 Answers)

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1

What is a 'mode' in statistics? (2 Answers)

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1

What is a 'median' in statistics? (2 Answers)

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1

What is the median value of the following data set: {12, 10, 15, 10, 18, 14, 15}?

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1

What is the median value of the following data set: {12, 10, 15, 10, 18, 14}?

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1

Find the mode of the following data set: {12, 10, 15, 10, 18, 14}

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1

Calculate the range of the following set of numbers: {6, 5, 14, 8, 16, 10}.

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1

If the mean of a data set is 9 and there are 7 values, what's the sum of all values?

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1

A student received scores of 90, 80, 85, 95 on the first 4 math tests. What score must he achieve on his fifth test to average 90 for all 5 tests?