a) What is the class size of the given grouped frequency distribution?

b) Which class has the highest frequency?

c) If Sachin scores 20 then in which interval will he be placed in?

d) What is the upper-class limit of the class interval 10-20? [4 MARKS]

$\begin{matrix} Runs & Cricketers 0 - 10 & 10 10 - 20 & 3 20 - 30 & 14 30 - 40 & 25 40 - 50 & 11 \end{matrix}$

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Solution

Solution: 1 Mark each

a) Class size = upper class limit – lower class limit = 10

b) The class interval 30-40 has the highest frequency of 25.

c) 20 belongs to 20-30 and not in 10-20 interval.

d) 20 is the upper-class limit of 10-20 class interval.

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Similar questions

a) What is the class size of the given grouped frequency distribution?

b) Which class has the highest frequency?

c) If Sachin scores 20 then in which interval will he be placed in?

d) What is the upper-class limit of the class interval 10-20? [4 MARKS]

$\begin{matrix} R u n s & C r i c k e t e r s 0 - 10 & 10 10 - 20 & 3 20 - 30 & 14 30 - 40 & 25 40 - 50 & 11 \end{matrix}$

a) What is the class size of the given grouped frequency distribution?

b) Which class has the highest frequency?

c) If Sachin scores 20 then in which interval will he be placed in?

d) What is the upper-class limit of the class interval 10-20? [4 MARKS]

$\begin{matrix} Runs & Cricketers 0 - 10 & 10 10 - 20 & 3 20 - 30 & 14 30 - 40 & 25 40 - 50 & 11 \end{matrix}$

a) Which class has the highest frequency?

b) If Sachin scores 20 then in which interval will he be placed in?

c) What is the upper-class limit of the class interval 10-20?

$\begin{matrix} R u n s & C r i c k e t e r s 0 - 10 & 10 10 - 20 & 3 20 - 30 & 14 30 - 40 & 25 40 - 50 & 11 \end{matrix}$

The marks scored by 40 candidates in an examination (out of 100) is given below:

75, 65, 57, 50, 32, 54, 75, 67, 75, 88, 80, 42, 40, 41, 34, 78, 43, 61,

42, 46, 68, 52, 43, 49, 59, 49, 67, 34, 33, 87, 97, 47, 46, 54, 48, 45,

51, 47, 41, 43.

Prepare a frequency distribution table with the class size 10. Take the class intervals as (30 - 39), (40 - 49), … and answer the following question:

(a) Which class intervals have highest and lowest frequency?

(b) Write the upper and lower limits of the class interval 30-39.

(i) Find the class mark of the class 90-120.
(ii) In a frequency distribution, the mid-value of the class is 10 and width of the class is 6. Find the lower limit of the class.
(iii) The width of each of five continuous classes in a frequency distribution is 5 and lower class limit of the lowest class is 10. What is the upper class limit of the highest class?
(iv) The class marks of a frequency distribution are 15, 20, 25, .... Find the class corresponding to the class mark 20.
(v) In the class intervals 10-20, 20-30, find the class in which 20 is included.

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Solution: 1 Mark each a) Class size = upper class limit – lower class limit = 10 b) The class interval 30-40 has the highest frequency of 25. c) 20 belongs to 20-30 and not in 10-20 interval. d) 20 is the upper-class limit of 10-20 class interval.

Solution: 1 Mark each

a) Class size = upper class limit – lower class limit = 10

b) The class interval 30-40 has the highest frequency of 25.

c) 20 belongs to 20-30 and not in 10-20 interval.

d) 20 is the upper-class limit of 10-20 class interval.