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MATHS 3 Marks Question

Data Handling II (Central Values) · Bihar Board (BSEB) STD 7 (BSEB - English Medium). 54 questions.

Questions · Page 2 of 2

3 Marks Question

Question 513 Marks
The mean weight per student in a group of 7 students is 55 kg. The individual weights of 6 of them (in kg) are 52, 54, 55, 53, 56 and 54. Find the weight of the seventh student.
Answer
61 kg
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Question 523 Marks
The mean of marks scored by 100 students was found to be 40. Later on it was discovered that a score of 53 was misread as 83. Find the correct mean.
Answer
39.7
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Question 533 Marks
The percentage of marks obtained by students of a class in mathematics are:
64, 36, 47, 23, 0, 19, 81, 93, 72, 35, 3, 1. Find their mean.
Answer
39.5
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Question 543 Marks
Following are the weights (in kg) of 10 new born babies in a hospital on a particular day:
$3.4,3.6,4.2,4.5,3.9,4.1,3.8,4.5,4.4,3.6$. Find the mean $\bar{X}$.
Answer
4 kg
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3 Marks Question - Page 2 - MATHS STD 7 Questions - Vidyadip