Question

Thirty women were examined in a hospital by a doctor and their 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 165-68
68-71 71-74 74-77 77-80
77-80 80-83 83-86
Number of women
2.
4
7
8
4
2
3
These​

Answer 1

Answer:

460.666666667

Step-by-step explanation:

168,68,71,74,77,80/30

=460.666666667

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