Page 173 - Maths Skill - 6

Answers 171

Chapter - 10: Data Handling and Presentation

Boot-up

A. 1. (ii) 2. (iv) 3. (i) 4. (iii) 5. (iii) B. 1. Data 2. Frequency 3. Array 4. |||| 5. 8
C. 1. False 2. False 3. False 4. True 5. True 6. True
Exercise - 10.1

1. Data is the collection of facts related to certain item or subject under different circumstances.
2. (i) Mango (ii) Guava and Orange (iii) Mixed fruit
3. (i) 30 – 39 → 37, 39, 40 – 49 → 44, 48, 48, 50 – 59 → 50, 52, 53, 55, 56, 58, 58, 59, 60 – 69 → 60, 60, 60, 61, 62, 64, 67, 68,
70 – 79 → 70, 75, 77, 78, 80 – 89 → 84, 88, 90 – 99 → 90, 98, 100 – 109 → 100
(ii) 100 (iii) 37 (iv) 2 students (v) 5 students

4.
No. of children in family 0 1 2 3 4 5 6 Total

Tally marks |||| |||| || |||| |||| || |||| |||| | ||| |||

Frequency 5 7 12 5 6 3 3 41

5.
Score 7 14 16 17 19 21 22 27 29 31 33 34 37 38 39 41 42 43 44 47 49 51 52 53 54 57 59 61 62 67 Total

Tally marks || | | | | | | || | | || | |||| || |||| | |||| | | | | | ||| | ||| | | || | | |

Frequency 2 1 1 1 1 1 1 2 1 1 2 1 4 2 4 1 6 1 1 1 1 3 1 3 1 1 2 1 1 1 50

6.
Accidents 0 1 2 3 4 5 6 Total

Tally marks || ||| |||| | ||| |||| |||| | |||| |

Frequency 2 3 6 3 4 6 6 30

7.
Age 12 13 14 15 16 17 Total

Tally marks |||| |||| |||| || |||| |||| || || |

Frequency 4 12 9 2 2 1 30

Exercise - 10.2
1. (i) 35 (ii) 50 (iii) 4th week (iv) 100 2 & 3. Do it yourself. 4. (i) 200 (ii) Wednesday
(iii) Friday (iv) 300 (v) Tuesday, Thursday 5. Yourself
6. (i) 20 (ii) 70 (iii) 15 (iv) Cosmos