HARD

11th ICSE

IMPORTANT

Earn 100

Find the coefficient of variation for the following data:

Size of item $10$ $11$ $12$ $13$ $14$ $15$ $16$

Frequency $2$ $7$ $11$ $15$ $10$ $4$ $1$

(Write your answer up to two decimal places.)

50% studentsanswered this correctly

Important Questions on Statistics

HARD

11th ICSE

IMPORTANT

Understanding ISC Mathematics Class 11 Volume 2>Chapter 14 - Statistics>EXERCISE>Q 7

Calculate the coefficient of variation from the following data:

Income $(₹)$	Number of families
$1000 - 1700$	$12$
$1700 - 2400$	$18$
$2400 - 3100$	$20$
$3100 - 3800$	$25$
$3800 - 4500$	$35$
$4500 - 5200$	$10$

(write the answer up to two decimal places.)

HARD

11th ICSE

IMPORTANT

Understanding ISC Mathematics Class 11 Volume 2>Chapter 14 - Statistics>EXERCISE>Q 8

Find the coefficient of variation for the following data:

Marks	$20 - 29$	$30 - 39$	$40 - 49$	$50 - 59$	$60 - 69$	$70 - 79$	$80 - 89$	$90 - 99$
Number of students	$5$	$12$	$15$	$20$	$18$	$10$	$6$	$4$

(Write the answer upto two decimal places.)

HARD

11th ICSE

IMPORTANT

Understanding ISC Mathematics Class 11 Volume 2>Chapter 14 - Statistics>EXERCISE>Q 9

Find the coefficient of variation for the following data:

Size (in $cm$ )	$10 - 15$	$15 - 20$	$20 - 25$	$25 - 30$	$30 - 35$	$35 - 40$
No. of items	$2$	$8$	$20$	$35$	$20$	$15$

(Write the answer upto two decimal places.)

HARD

11th ICSE

IMPORTANT

Understanding ISC Mathematics Class 11 Volume 2>Chapter 14 - Statistics>CHAPTER TEST>Q 1

Find the value of $p,$ if the mean of the following distribution is $18 :$

Variate $(x_{i})$	$13$	$15$	$17$	$19$	$20 + p$	$23$
Frequency $(f_{i})$	$8$	$2$	$3$	$4$	$5 p$	$6$

HARD

11th ICSE

IMPORTANT

Understanding ISC Mathematics Class 11 Volume 2>Chapter 14 - Statistics>CHAPTER TEST>Q 2

Calculate the arithmetic mean of the following frequency distribution:

Class interval	$0 - 80$	$80 - 160$	$160 - 240$	$240 - 320$	$320 - 400$
Frequency	$22$	$35$	$44$	$25$	$24$

HARD

11th ICSE

IMPORTANT

Understanding ISC Mathematics Class 11 Volume 2>Chapter 14 - Statistics>CHAPTER TEST>Q 3

Find the mean age in $years$ from the frequency distribution given below:

Age in $years$	$25 - 29$	$30 - 34$	$35 - 39$	$40 - 44$	$45 - 49$	$50 - 54$	$55 - 59$
No. of persons	$4$	$14$	$22$	$16$	$6$	$5$	$3$

(Write the anwer up to two decimal places.)

MEDIUM

11th ICSE

IMPORTANT

Understanding ISC Mathematics Class 11 Volume 2>Chapter 14 - Statistics>CHAPTER TEST>Q 4

Find the mode of the given data:

Class	$3 - 6$	$6 - 9$	$9 - 12$	$12 - 15$	$15 - 18$	$18 - 21$	$21 - 24$
Frequency	$2$	$5$	$10$	$23$	$21$	$12$	$3$

HARD

11th ICSE

IMPORTANT

Understanding ISC Mathematics Class 11 Volume 2>Chapter 14 - Statistics>CHAPTER TEST>Q 5

Find the mode from the following cumulative frequency distribution:

Marks below	$10$	$20$	$30$	$40$	$50$	$60$	$70$	$80$
Number of students	$5$	$11$	$22$	$37$	$56$	$68$	$75$	$80$

(Write the answer upto two decimal places.)

Size of item	$10$	$11$	$12$	$13$	$14$	$15$	$16$
Frequency	$2$	$7$	$11$	$15$	$10$	$4$	$1$

Find the coefficient of variation for the following data: Size of item 10 11 12 13 14 15 16 Frequency 2 7 11 15 10 4 1 (Write your answer up to two decimal places.)

Important Questions on Statistics

Learn and Prepare for any exam you want !

Find the coefficient of variation for the following data:

Size of item $10$ $11$ $12$ $13$ $14$ $15$ $16$

Frequency $2$ $7$ $11$ $15$ $10$ $4$ $1$

(Write your answer up to two decimal places.)