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All questions of Data Handling for Class 6 Exam
In a bar graph, what does the height of a bar represent?- a) The frequency of the data
- b) The total sum of observations
- c) The color of the bar
- d) The order of categories
Correct answer is option 'A'. Can you explain this answer?
In a bar graph, what does the height of a bar represent?
a)
The frequency of the data
b)
The total sum of observations
c)
The color of the bar
d)
The order of categories
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Get Idea answered |
The height of a bar in a bar graph represents the frequency of the data for that particular category, providing a visual comparison between different categories.
Which measure of central tendency is least affected by outliers?- a) Mode
- b) Range
- c) Median
- d) Mean
Correct answer is option 'C'. Can you explain this answer?
Which measure of central tendency is least affected by outliers?
a)
Mode
b)
Range
c)
Median
d)
Mean
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Get Idea answered |
The median is least affected by outliers, as it represents the middle value in an ordered data set, allowing it to accurately reflect the central tendency without being skewed by extreme values.
How do bar graphs display data?- a) Using shading
- b) Using rectangular bars
- c) Using lines
- d) Using circles
Correct answer is option 'B'. Can you explain this answer?
How do bar graphs display data?
a)
Using shading
b)
Using rectangular bars
c)
Using lines
d)
Using circles
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Get Idea answered |
Bar graphs display data using rectangular bars, where the height or length of each bar corresponds to the frequency of the data it represents.
If a data set consists of the numbers 5, 7, 9, 10, and 12, what is the median?- a) 7
- b) 8
- c) 10
- d) 9
Correct answer is option 'D'. Can you explain this answer?
If a data set consists of the numbers 5, 7, 9, 10, and 12, what is the median?
a)
7
b)
8
c)
10
d)
9
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Get Idea answered |
To find the median, first arrange the data in order, which is already done here. Since there are five numbers (odd), the median is the middle value, which is 9.
What is the purpose of a key in a pictograph?- a) To confuse the reader
- b) To summarize data
- c) To increase complexity
- d) To provide explanations for symbols
Correct answer is option 'D'. Can you explain this answer?
What is the purpose of a key in a pictograph?
a)
To confuse the reader
b)
To summarize data
c)
To increase complexity
d)
To provide explanations for symbols
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Get Idea answered |
The key in a pictograph serves to provide explanations for the symbols used, indicating what each symbol represents in terms of quantity, thus enhancing understanding of the data presented.
Which step is NOT part of constructing a bar graph?- a) Drawing two perpendicular lines
- b) Choosing a scale
- c) Listing all possible values
- d) Drawing bars of equal width
Correct answer is option 'C'. Can you explain this answer?
Which step is NOT part of constructing a bar graph?
a)
Drawing two perpendicular lines
b)
Choosing a scale
c)
Listing all possible values
d)
Drawing bars of equal width
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Get Idea answered |
Listing all possible values is not a step in constructing a bar graph; instead, the focus is on drawing the axes, choosing a scale, and drawing the bars based on the data.
Which of the following statements about bar graphs is true?- a) Bars are always shaded in different colors.
- b) They can only be vertical.
- c) Bars can be horizontal or vertical.
- d) Bars can be of different widths.
Correct answer is option 'C'. Can you explain this answer?
Which of the following statements about bar graphs is true?
a)
Bars are always shaded in different colors.
b)
They can only be vertical.
c)
Bars can be horizontal or vertical.
d)
Bars can be of different widths.
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Get Idea answered |
Bar graphs can be either horizontal or vertical, allowing for flexible presentation of data depending on the context and preferences for visualization.
What is the primary purpose of collecting data?- a) To gather information systematically
- b) To ignore important details
- c) To create random numbers
- d) To confuse the analysts
Correct answer is option 'A'. Can you explain this answer?
What is the primary purpose of collecting data?
a)
To gather information systematically
b)
To ignore important details
c)
To create random numbers
d)
To confuse the analysts
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Get Idea answered |
Collecting data is essential for gathering information systematically to analyze and understand specific patterns or preferences, which can aid in decision-making and planning.
In data handling, what is the significance of organizing data?- a) It simplifies counting and analysis
- b) It makes data harder to interpret
- c) It allows for easy access to ungrouped data
- d) It focuses only on the highest values
Correct answer is option 'A'. Can you explain this answer?
In data handling, what is the significance of organizing data?
a)
It simplifies counting and analysis
b)
It makes data harder to interpret
c)
It allows for easy access to ungrouped data
d)
It focuses only on the highest values
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Get Idea answered |
Organizing data simplifies counting and analysis by presenting it in a structured format, making it easier to identify patterns and draw conclusions from the data.
What is the key feature of a well-constructed bar graph?- a) Bars should be spaced unevenly
- b) All bars should have the same width and equal spacing
- c) Bars should not be labeled
- d) Bars should be of varying widths
Correct answer is option 'B'. Can you explain this answer?
What is the key feature of a well-constructed bar graph?
a)
Bars should be spaced unevenly
b)
All bars should have the same width and equal spacing
c)
Bars should not be labeled
d)
Bars should be of varying widths
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Get Idea answered |
A well-constructed bar graph features bars of the same width and equal spacing between them, which ensures clarity and makes it easy to compare different data sets.
Which of the following is NOT a method for representing data?- a) Bar graphs
- b) Word problems
- c) Tally marks
- d) Pictographs
Correct answer is option 'B'. Can you explain this answer?
Which of the following is NOT a method for representing data?
a)
Bar graphs
b)
Word problems
c)
Tally marks
d)
Pictographs
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Get Idea answered |
While tally marks, pictographs, and bar graphs are all methods for representing data visually, word problems do not represent data; they are typically used to pose questions involving data.
In tally marks, how is a group of five represented?- a) |||||
- b) |||||
- c) |/
- d) ||||
Correct answer is option 'C'. Can you explain this answer?
In tally marks, how is a group of five represented?
a)
|||||
b)
|||||
c)
|/
d)
||||
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Get Idea answered |
A group of five in tally marks is represented as ||||, with a crossbar over four vertical lines. This system helps in quick counting and organizing data.
What is the first step in organizing data?- a) List categories
- b) Draw graphs
- c) Analyze the data
- d) Count the responses
Correct answer is option 'A'. Can you explain this answer?
What is the first step in organizing data?
a)
List categories
b)
Draw graphs
c)
Analyze the data
d)
Count the responses
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Get Idea answered |
The first step in organizing data is to list the categories that will be used for grouping similar responses, which simplifies the counting and analysis process.
What is the mean of a data set?- a) The highest value in the set
- b) The middle value when arranged in order
- c) The sum of all values divided by the number of values
- d) The most frequently occurring value
Correct answer is option 'C'. Can you explain this answer?
What is the mean of a data set?
a)
The highest value in the set
b)
The middle value when arranged in order
c)
The sum of all values divided by the number of values
d)
The most frequently occurring value
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Get Idea answered |
The mean, or average, of a data set is calculated by summing all the values and dividing by the total number of observations, providing a central value for the dataset.
What is the formula to calculate the mean of a data set?- a) Mean = (Average of all values) + (Mode)
- b) Mean = (Sum of all observations) / (Total number of observations)
- c) Mean = (Total number of observations) / (Sum of all observations)
- d) Mean = (Highest value - Lowest value) / 2
Correct answer is option 'B'. Can you explain this answer?
What is the formula to calculate the mean of a data set?
a)
Mean = (Average of all values) + (Mode)
b)
Mean = (Sum of all observations) / (Total number of observations)
c)
Mean = (Total number of observations) / (Sum of all observations)
d)
Mean = (Highest value - Lowest value) / 2
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Get Idea answered |
The formula for calculating the mean is the sum of all observations divided by the total number of observations, providing a balanced average of the data set.
What is the central tendency that represents the most frequently occurring value in a data set?- a) Median
- b) Mode
- c) Mean
- d) Range
Correct answer is option 'B'. Can you explain this answer?
What is the central tendency that represents the most frequently occurring value in a data set?
a)
Median
b)
Mode
c)
Mean
d)
Range
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Get Idea answered |
The mode is the measure of central tendency that identifies the most frequently occurring value in a data set, making it useful for understanding common values.
When calculating the median of an even number of observations, what must you do?- a) Average the two middle values
- b) Ignore the smallest value
- c) Take the largest value
- d) Count all values
Correct answer is option 'A'. Can you explain this answer?
When calculating the median of an even number of observations, what must you do?
a)
Average the two middle values
b)
Ignore the smallest value
c)
Take the largest value
d)
Count all values
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Get Idea answered |
When calculating the median of an even number of observations, you must average the two middle values to find the central tendency accurately.
How is the median defined in a data set?- a) The average of all values
- b) The highest value
- c) The least value
- d) The middle value in an ordered list
Correct answer is option 'D'. Can you explain this answer?
How is the median defined in a data set?
a)
The average of all values
b)
The highest value
c)
The least value
d)
The middle value in an ordered list
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Get Idea answered |
The median is defined as the middle value of a data set when it is arranged in ascending or descending order, making it a useful measure of central tendency that is not influenced by extreme values.
Why is it important to group similar data when collecting information?- a) It reduces the amount of data collected
- b) It eliminates the need for graphs
- c) It complicates the analysis
- d) It allows for easier counting and analysis
Correct answer is option 'D'. Can you explain this answer?
Why is it important to group similar data when collecting information?
a)
It reduces the amount of data collected
b)
It eliminates the need for graphs
c)
It complicates the analysis
d)
It allows for easier counting and analysis
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Get Idea answered |
Grouping similar data makes it easier to count and analyze, as it helps in identifying trends and patterns, ultimately leading to more accurate conclusions.
What does a pictograph use to represent data?- a) Numbers
- b) Letters
- c) Graphs
- d) Pictures or symbols
Correct answer is option 'D'. Can you explain this answer?
What does a pictograph use to represent data?
a)
Numbers
b)
Letters
c)
Graphs
d)
Pictures or symbols
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Get Idea answered |
A pictograph uses pictures or symbols to visually represent data, making it easier to understand and compare different categories quickly.
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Mathematics Class 6 ICSE
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