Grade 9 _Unit 1_01_Diagnostic Test

Last updated almost 3 years ago

15 questions

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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

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

True

False

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

True

False

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

Numerical data can be divided into discrete and continuous data.

True

False

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

The most number in a set

The least number in a set

Sum of all numbers divided by total count

The average of a set of data

The difference between the highest and lowest value

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

The middle value of a data set

Difference between maximum and minimum values

Number that appears most often

The difference between the highest and lowest value

The most common number in a set

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

Total of all numbers

Number that appears most often

Sum of all numbers divided by total count

The most frequently occurring number

Average of a set of data

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

Number that appears most often

The most frequent number

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

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

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

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

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

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

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?

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

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

True

False

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

True

False

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

Numerical data can be divided into discrete and continuous data.

True

False

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

The most number in a set

The least number in a set

Sum of all numbers divided by total count

The average of a set of data

The difference between the highest and lowest value

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

The middle value of a data set

Difference between maximum and minimum values

Number that appears most often

The difference between the highest and lowest value

The most common number in a set

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

Total of all numbers

Number that appears most often

Sum of all numbers divided by total count

The most frequently occurring number

Average of a set of data

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

Number that appears most often

The most frequent number

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