MEDIUM
Lower Secondary Stage 9
IMPORTANT
Earn 100

The frequency diagram shows the mass of 80 objects.

Question Image 

Find the interval that contains the median class.

 

50% studentsanswered this correctly

Important Questions on Data Collection and Averages

HARD
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Starting point>Q ●
How to calculate the mean, median and mode for a set of data and identify the modal class for a grouped frequency table?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Starting point>Q ●

Calculate the mean mark for the data in the table.

Mark Frequency
7 5
8 9
9 5
10 1

 

EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Starting point>Q ●

How to identify sets of discrete and continuous data? The marks are shown in the frequency table discrete or continuous data?

Mark Frequency
7 5
8 9
9 5
10 1
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Starting point>Q ●

How to complete a frequency table so that it has equal class intervals. Complete the class in the following table so that they have the same width.
 

Length, L cm Frequency
6≤L<8  
8≤L<10  
_____≤L<_____  
_____≤L<_____  

 

EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Hook
Henri plays a game over and over again. On each attempt, he gets a score of between 1 and 20. These are his scores for his first seven attempts : 14, 12, 11, 13, 8, 7, 9. Henri plays the game an eighth time. What is his score if the mean of all 8 scores is 11.
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Hook
Henri plays a game over and over again. On each attempt, he gets a score of between 1 and 20. These are his scores for his first seven attempts : 14, 12, 11, 13, 8, 7, 9. Henri plays the game an eighth time. What is his score if the range of all 8 scores is 9.
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Hook
Henri plays a game over and over again. On each attempt, he gets a score of between 1 and 20. These are his scores for his first seven attempts : 14, 12, 11, 13, 8, 7, 9. Henri plays the game an eighth time. What could his score be if the mean of all 8 score is 10?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Hook
Henri plays a game over and over again. On each attempt, he gets a score of between 1 and 20. These are his scores for his first seven attempts : 14, 12, 11, 13, 8, 7, 9. Henri plays the game an eighth time. What could his score be if the mean of all 8 score is 9.5?