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The marks sco...

Question

The marks scored by two students A, B in a class are given below.
A
$58$
$51$
$60$
$65$
$66$
B
$56$
$87$
$88$
$46$
$43$
Who is more consistent?

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Solution

From question,
The successive marks scored by student B is more fluctuating .
Therefore,
A is more consistent.

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Similar questions

Q. Marks scored by 50 students are given below:

40	45	38	24	46	42	45	18	53	64
45	32	52	54	78	65	52	64	66	43
48	55	50	43	48	20	27	65	37	55
51	55	62	66	38	16	60	58	46	35
72	62	54	58	30	36	43	82	46	53

(a) Arrange the marks in ascending order.
(b) Represent the marks in the form of discrete frequency distribution.
(c) Construct an inclusive frequency distribution with first class as 10−19. Also construct class boundaries.
(d) Construct a frequency distribution with exclusive class-intervals, taking the lowest class as 10−20.
(e) Convert the exclusive series constructed in (d) into 'less than' and 'more than' cumulative frequency distribution.

Q. Marks scored by

30

students of class

V I

are as given below:

38, 46, 33, 45, 63, 53, 40, 85, 52, 75, 60, 73, 62, 22, 69, 43, 45, 33, 47, 41, 29, 43, 37, 49, 83, 44, 55, 22, 35

45

.
State:
the highest marks scored

Q. Marks scored by

30

students of class

V I

are as given below:

38, 46, 33, 45, 63, 53, 40, 85, 52, 75, 60, 73, 62, 22, 69, 43, 45, 33, 47, 41, 29, 43, 37, 49, 83, 44, 55, 22, 35

45

.
State:
the lowest marks scored

Q. The following are the marks obtained in Maths by students of Class 8:
51, 94, 34, 20, 50, 81, 81, 90, 76, 34, 51, 86, 93, 99, 26, 54, 85, 71, 88, 40, 44, 56, 55, 57, 78, 53, 81, 78, 65, 78.

Group the data and find out how many students scored between 60 and 70?

The marks scored out of 10 by 13 students of a class are given as:
$6, 7, 3, 7, 6, 9, 4, 6, 10, 4, 6, 8, 9$

What is the frequency of students who scored more than 6 marks?

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