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Standard VI

Mathematics

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Consider the ...

Question

Consider the Rufus School activities-data shown below :
Basketball Chess club Jazz Band Not involved Total
Males $20$ $2$ $8$ $10$ $40$
Females $20$ $10$ $10$ $20$ $60$
Total $40$ $12$ $18$ $30$ $100$
Prepare bivariate table with relative frequency.
Based on bivariate table with relative frequency, what is the relative frequency of students who indicated they play basketball ?

0.40

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0.30

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0.20

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0.10

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Solution

The correct option is A $0.40$
Total number of students $= 100$
Total number of students who play basketball $= 40$
Therefore, relative frequency of students who play basketball $= \frac{number of students who play basketball}{total number of students} = \frac{40}{100} = .40$
Option A is correct.

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Similar questions

Q. Consider the Rufus School activities-data shown below :

	Basketball	Chess club	Jazz Band	Not involved	Total
Males	$20$	$2$	$8$	$10$	$40$
Females	$20$	$10$	$10$	$20$	$60$
Total	$40$	$12$	$18$	$30$	$100$

Prepare bivariate table with relative frequency.
Based on bivariate table with relative frequency, what is the relative frequency of females who play Jazz band ?

The following table gives the marks scored by 100 students in an entrance examination.

$\begin{matrix} M a r k s & 0.10 & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 & 50 - 60 & 60 - 70 & 70 - 80 N o . o f s t u d e n t s (F r e q u e n c y) & 4 & 10 & 16 & 22 & 20 & 18 & 8 & 2 \end{matrix}$

Represent this data in the form of a histogram

Q. Prepare the cumulative frequency (less than type) table from the following distribution table

Class	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$
Frequency	$2$	$3$	$7$	$8$	$5$

Q. Find the missing frequencies

f_{1}

and

f_{2}

in the following frequency distribution table.

N = 100

and median is

32

Class	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$	$T o t a l$
Frequency	$10$	$f_{1}$	$25$	$30$	$f_{2}$	$10$	$100$

Table 1
Marks	Frequency	Cumulative Frequency
0-10	2	2
10-20	8	10
20-30	12	22
30-40	18	40
40-50	28	68
50-60	22	90
60-70 70-80	6 4	96 100

Table 2

Class (marks )	Frequency
11-15	2
16-20	3
21-25	3
26-30	5
31-35	6
36-40	6
41-45	3
46-50	2
Total	30

Table 3

Time (in min)	Frequency
15	7
20	15
25	17
30	3
35	14
40	2

Table 4

31	42	49	25	29
40	36	24	29	30
40	46	38	34	26
24	22	39	40	21

Which table shows the cumulative frequency distribution?

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The correct option is A 0.40Total number of students =100Total number of students who play basketball =40Therefore, relative frequency of students who play basketball = number of students who play basketball total number of students=40100=.40Option A is correct.

The correct option is A $0.40$
Total number of students $= 100$
Total number of students who play basketball $= 40$
Therefore, relative frequency of students who play basketball $= \frac{number of students who play basketball}{total number of students} = \frac{40}{100} = .40$
Option A is correct.