Question

Thirty women were examined in a hospital by a doctor and their of heart beats per minute were recorded and summarised as shown. Find the mean heart beats per minute for these women, choosing a suitable method.

Number of heart beats/minute 65-68

Number of women

5.

2

68-71

4

71-74

3

74-77

8

77-80

7

80-83

4

83-86

2​

Answer 1

Answer:

2 people are there in the offies