CBSE Class 10 Maths (Basic) 2024 · Paper 430/2/1 · Question 37
Heart Rate : The heart rate is one of the 'vital signs' of health in the human body. It measures the number of times per minute that the heart contracts or beats. While a normal heart rate does not guarantee that a person is free of health problems, it is a useful benchmark for identifying a range of health issues. Thirty women were examined by doctors of AIIMS and the number of heart beats per minute were recorded and summarized in the table below. Based on the above information, answer the following questions.
| Number of heart beats per minute | Number of Women |
|---|---|
| 65 - 68 | 2 |
| 68 - 71 | 4 |
| 71 - 74 | 3 |
| 74 - 77 | 8 |
| 77 - 80 | 7 |
| 80 - 83 | 4 |
| 83 - 86 | 2 |
- (i)How many women are having heart beat in the range -?[1]
- (ii)What is the median class of heart beats per minute for these women?[1]
- (iii)(a)Find the modal value of heart beats per minute for these women.[2]
- (iii)(b)Find the median value of heart beats per minute for these women.[2]
Answer
(i) women; (ii) The median class is –; (iii)(a) Mode beats per minute; (iii)(b) Median beats per minute.
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