Question : Directions: Study the histogram of the marks (in mathematics) distribution of fifty students in class IX and answer the following question:

The average marks of the students are:
Option 1: $53.2$
Option 2: $45.5$
Option 3: $60.2$
Option 4: $55.5$

Question

Question : Directions: Study the histogram of the marks (in mathematics) distribution of fifty students in class IX and answer the following question:

The average marks of the students are:

Option 1: $53.2$

Option 2: $45.5$

Option 3: $60.2$

Option 4: $55.5$

Team Careers360 · Accepted Answer

Correct Answer: $53.2$

Solution : Required Average $=\frac{ ext{Total marks obtained by the students}}{{ ext{Total number of students in the class}}}$
Take the mid value of each interval while taking the sum of all observations.
Required Average $= \frac{(7 imes 10) + (8 imes 30) + (18 imes 50) + (4 imes 70) + (13 imes 90)}{50} \$
$= \frac{70 + 240 + 900 + 280+1170}{50}\$
$= \frac{2660}{50} \$
$= 53.2$
Hence, the correct answer is $53.2$.

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Question : Directions: Study the histogram of the marks (in mathematics) distribution of fifty students in class IX and answer the following question:

The average marks of the students are:
Option 1: $53.2$
Option 2: $45.5$
Option 3: $60.2$
Option 4: $55.5$

Related Questions

Question : Directions: Study the histogram of the marks (in mathematics) distribution of 50 students in class IX and answer the following question:

The number of students who have secured marks less than 60 is:
Option 1: 12
Option 2: 15
Option 3: 33
Option 4: 7

Question : Directions: Study the histogram of the marks (in mathematics) distribution of 50 students in class IX and answer the following question:

The percentage of students who have secured marks more than 59 is:
Option 1: 13%
Option 2: 17%
Option 3: 34%
Option 4: 26%

Question : Directions: Study the histogram of the marks (in mathematics) distribution of 50 students in class IX and answer the following question:

The number of students who have scored between 39 and 80 is:
Option 1: 22
Option 2: 18
Option 3: 37
Option 4: 15

Question : Directions: Select the figure from among the given options that can replace the question mark (?) in the following series.

Option 1:
Option 2:
Option 3:
Option 4:

Question : Directions: Out of the following five figures, four are alike in some manner and one differs from these in that manner. Select the odd figure.

Option 1:
Option 2:
Option 3:
Option 4:

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Question : Directions: Study the histogram of the marks (in mathematics) distribution of fifty students in class IX and answer the following question: The average marks of the students are:Option 1: $53.2$Option 2: $45.5$Option 3: $60.2$Option 4: $55.5$

Related Questions

Question : Directions: Study the histogram of the marks (in mathematics) distribution of 50 students in class IX and answer the following question: The number of students who have secured marks less than 60 is:Option 1: 12Option 2: 15Option 3: 33Option 4: 7

Question : Directions: Study the histogram of the marks (in mathematics) distribution of 50 students in class IX and answer the following question: The percentage of students who have secured marks more than 59 is:Option 1: 13%Option 2: 17%Option 3: 34%Option 4: 26%

Question : Directions: Study the histogram of the marks (in mathematics) distribution of 50 students in class IX and answer the following question: The number of students who have scored between 39 and 80 is:Option 1: 22Option 2: 18Option 3: 37Option 4: 15

Question : Directions: Select the figure from among the given options that can replace the question mark (?) in the following series. Option 1: Option 2: Option 3: Option 4:

Question : Directions: Out of the following five figures, four are alike in some manner and one differs from these in that manner. Select the odd figure. Option 1: Option 2: Option 3: Option 4: