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Grade 9 _Unit 1_01_Diagnostic Test

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Last updated over 2 years ago
15 questions
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Question 1
1.

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
Question 2
2.

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

Question 3
3.

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

Question 4
4.
  • Quantitative Data
  • Qualitative Data
  • Discrete Data
Question 5
5.

Numerical data can be divided into discrete and continuous data.

Question 6
6.

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

Question 7
7.

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

Question 8
8.

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

Question 9
9.

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

Question 10
10.

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

Question 11
11.

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

Question 12
12.

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

Question 13
13.

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

Question 14
14.

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

Question 15
15.

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?

A part of population
Census
Sample
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
Sum of all numbers divided by total count
The average of a set of data
The difference between the highest and lowest value
Number that appears most often
The difference between the highest and lowest value
The most common number in a set
Sum of all numbers divided by total count
The most frequently occurring number
Average of a set of data
The value separating the highest half from the lowest half
The middle number of a data set when arranged in order
Sum of numbers divided by count