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Test: Data Handling - Class 7 MCQ


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10 Questions MCQ Test - Test: Data Handling

Test: Data Handling for Class 7 2024 is part of Class 7 preparation. The Test: Data Handling questions and answers have been prepared according to the Class 7 exam syllabus.The Test: Data Handling MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Data Handling below.
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Test: Data Handling - Question 1

The number of times an observation occurs in a data is called its

Detailed Solution for Test: Data Handling - Question 1

Explanation of Terms:

  • Frequency: The count of how many times a specific data point or value appears in a dataset. For example, if the number 5 appears 10 times in a dataset, the frequency of the number 5 is 10.

  • Range: The difference between the highest and lowest values in a dataset. For example, if the highest value is 20 and the lowest is 5, the range is 20 - 5 = 15.

  • Raw Data: The original, unprocessed data collected from observations or measurements before any analysis or summary is done.

  • Interval: In statistics, intervals are ranges of values within which data points fall. For example, if data is grouped into intervals like 10-20, 21-30, etc., each interval represents a range of values.

So, frequency is the term used to describe how many times a particular observation appears in a dataset.

Test: Data Handling - Question 2

In the class- interval 70-80, 80 is the

Detailed Solution for Test: Data Handling - Question 2

The highest observation is the largest quantity in the interval. So 80 is the highest observation.

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Test: Data Handling - Question 3

The mean of marks of class 95 - 100 is

Detailed Solution for Test: Data Handling - Question 3

Mean is the midpoint of the upper and lower limits.
So for the given problem; the mean is
[(95+100)÷2] = 97.5 
Thus class mark is 97.5 

So option C is the correct answer.

Test: Data Handling - Question 4

The difference between the highest and lowest observation is called

Detailed Solution for Test: Data Handling - Question 4

The difference between the highest and lowest observation of a class interval is called the range.

Test: Data Handling - Question 5

The median of distribution 9, 3, 4, 7, 5, 1, 8 is:

Detailed Solution for Test: Data Handling - Question 5

Arranging the terms in ascending order 1, 3, 4, 5, 7, 8, 9

The median is the middle observation.

Therefore 5 is the median.

Test: Data Handling - Question 6

Find the mean weight of the data set shown. 5 kg, 43 kg, 18 kg, 26 kg, 28 kg, 46 kg, 41 kg, 1 kg

Detailed Solution for Test: Data Handling - Question 6

Mean =  Sum of mass weights / Total number of weighs

= (5 + 43 + 18 + 26 + 28 + 46 + 41 + 1)/8

= 26

Test: Data Handling - Question 7

A kennel can accommodate 12 dogs that weigh (in pounds) 6, 14, 23, 17, 19, 27, 39, 7, 33, 4, 11, and 13. Find the range of their weights.

Detailed Solution for Test: Data Handling - Question 7

The Range is the difference between the lowest and highest values.

Here the highest value is 39 and the lowest value is 4 

So Range = Highest Value - Lowest Value

                  = 39 - 4 = 35 

So option B is the correct answer. 

Test: Data Handling - Question 8

Find the mode for the data set, which shows the heights (in inches) of 10 students of Piyush’s class. 65, 60, 64, 61, 66, 67, 67, 67, 62, 77

Detailed Solution for Test: Data Handling - Question 8

the mode of a set of numbers is the number that appears most often in the set.

Since the number 67 appears the most . So the mode of the given data is 67.

So option B is the correct answer. 

Test: Data Handling - Question 9

Which student scored the highest marks?

Detailed Solution for Test: Data Handling - Question 9

From the observation made, Apala scored the highest marks i.e. 600.

Test: Data Handling - Question 10

The number of tourists visiting a historical place in a week is shown in the following table:

The mean of the number of tourists visiting on all days is

Detailed Solution for Test: Data Handling - Question 10

Mean = Sum of observations / No. of observations

= (65 + 72 + 98 + 84 + 60 + 108 + 160) / 7

= 647 / 7

= 92

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