Tag: frequency table and diagrams

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Questions Related to frequency table and diagrams

Multiple choice statistics data handling analysis bar charts frequency table and diagrams bar diagram

A series showing the sets of all distinct values individually with their frequencies is known as _______.

  1. continuous frequency distribution

  2. simple frequency distribution

  3. cumulative frequency distribution

  4. none of them
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A simple frequency distribution lists each distinct value of a variable alongside its corresponding frequency, allowing for a clear view of the data set.

Multiple choice statistics data handling analysis bar charts frequency table and diagrams bar diagram

For the mid-values 4,8,12,16,20 the first class of the distribution is _________.

  1. 0-8

  2. 1-7

  3. 2-6

  4. none of them
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mid-values are calculated as (lower limit + upper limit) / 2. For the first class, if the mid-value is 4 and the interval width is 4 (based on the difference between consecutive mid-values), the class is 2-6, where (2+6)/2 = 4.

Multiple choice statistics data handling analysis bar charts frequency table and diagrams bar diagram

Year wise production of rice, wheat and maize for last ten years can be displayed by :

  1. Simple column chart

  2. Multiple column chart

  3. Broken column chart

  4. Sub-divided column chart
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A multiple column chart (or grouped bar chart) is used to compare multiple variables (rice, wheat, maize) over the same time periods, allowing for side-by-side comparison.

Multiple choice statistics data handling analysis bar charts frequency table and diagrams bar diagram

Bar diagrams are helpful because _____________.

  1. bar diagrams are suitable both for frequency type and non-frequency type variables and attributes.

  2. bar diagrams are more convenient for non-frequency data such as export/imports over the years, etc.

  3. bar diagrams can be visually compared by their relative height and accordingly data are comprehended quickly.

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bar diagrams are versatile tools for representing both frequency and non-frequency data, and they allow for quick visual comparison of magnitudes through height or length.

Multiple choice statistics data handling analysis bar charts frequency table and diagrams bar diagram

_________ comprises a group of equispaced and equiwidth rectangular bars for each class or category of data.

  1. Histogram

  2. Frequency diagram

  3. Bar diagram

  4. All of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A bar diagram consists of rectangular bars of equal width and spacing, where the length of the bar represents the magnitude of the data category.

Multiple choice statistics data handling analysis bar charts frequency table and diagrams bar diagram

When comparing income and expenditure or import and export for different years, marks obtained in etc. _______ bar diagrams are used.

  1. multiple

  2. simple

  3. component

  4. all of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Multiple bar diagrams are specifically designed to compare two or more related variables across different categories or time periods.

Multiple choice statistics data handling analysis bar charts frequency table and diagrams bar diagram

In case of frequency distribution with classes of unequal widths, the heights of bar of a histogram are proportional to _____________.

  1. frequency

  2. class intervals

  3. frequency densities

  4. frequencies in percentage
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When class intervals are unequal, the area of the histogram bars must be proportional to the frequency. Therefore, the height of the bar is calculated as frequency divided by class width, which is the frequency density.