Question

A company manufactures car tyres of a particular type. The lives (in years) of 40 are as follows:2.6 3.0 3.7 3.2 2.2 4.1 3.5 4.5 3.5 2.3 3.2 3.4 3.8 3.2 4.6 3.7 2.5 4.4 3.4 3.3 2.9 3.0 4.3 2.8 3.5 3.2 3.9 3.2 3.2 3.1 3.7 3.4 4.6 3.8 3.2 2.6 3.5 4.2 2.9 3.6 Construct a continuous grouped frequency distribution for the above data of equal class size and with first class interval as 2-2.5 (2.5 is not included)

Answer 1

class interval frequency. lcf
2-2.5. 2. 2
2.5-3. 6. 8
3-3.5. 13 21
3.5-4. 11. 32
4-4.5. 4. 36
4.5-5. 4. 40

Answer 2

Frequency Distribution

Step-by-step explanation:

Lives(in years)         No. of batteries

Class intervals  

2.0 - 2.5                                   2

2.5 - 3.0                                   6

3.0 - 3.5                                  14

3.5 - 4.0                                   11

4.0 - 4.5                                   4

4.5 - 5.0                                   3      

Total                                      40

Learn more: Frequency

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