Q. 25.0( 5 Votes )

The final marks in mathematics of 30 students are as follows:

53, 61, 48, 60, 78, 68, 55, 100, 67, 90, 75, 88, 77, 37, 84,

58, 60, 48, 62, 56, 44, 58, 52, 64, 98, 59, 70, 39, 50, 60

(i) Arrange these marks in the ascending order, 30 to 39 one group, 40 to 49 second group etc.

Now answer the following:

(ii) What is the highest score?

(iii) What is the lowest score?

(iv) What is the range?

(v) If 40 is the pass mark how many have failed?

(vi) How many have scored 75 or more?

(vii) Which observations between 50 and 60 have not actually appeared?

(viii) How many have scored less than 50?

Answer :

(i)



(ii) High score is 100.


(iii) Lowest score is 37.


(iv) Range = 100 – 37 = 63.


(v) Number of students failed = 2. (37 , 39)


(vi) Number of students scored more than 75 are = 8.


(vii) Those observations are = 51 , 54 , 57


(viii) number of people scored less than 50 = 5. (37, 39, 44, 48, 48)


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Genius Quiz | Data Handling41 mins
Get to Know the Probability44 mins
Quiz on Pie Charts31 mins
NCERT | Imp. Questions Discussion on Data Handling45 mins
Quiz | Imp. Qs. of Data Handling43 mins
Delicious Pie Charts29 mins
Peering into Probability50 mins
Histograms and Pie Chart43 mins
Quiz | Data Handling46 mins
Strong Your Concept of Frequency Distribution47 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses
RELATED QUESTIONS :