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On his way to fitness (Posted on 2015-06-15) Difficulty: 2 of 5
Johny, trying to reduce, followed a certain diet
during the month of April.
He recorded his weight daily at 8:00, naked, using the same balance.
Some of his entries are given below:

Apr 3...........102.6 kg
Apr 8...........101.1 kg
Apr 14.........99.4 kg
Apr 18.........98.7 kg
Apr 22.........98.0 kg
Apr 28..........97.6 kg

Please provide your estimate of his average April weight.

No Solution Yet Submitted by Ady TZIDON    
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Some Thoughts 2 remarks | Comment 5 of 10 |

I am very busy, packing my staff for 11 days vacation (Ibiza, Rome & Napoli)- I will need some time to post my opinion, - solving my own puzzle should be given due consideration.  Later!

However, 2 remarks pop up immediately upon seeing  the 4 posts:

1. How can one justify 96.3 as an average while such value is lower than each of the weights mentioned? I wonder.

2. Let us not worry about the fluctuations during the day-we should standardize the question: What is your estimate of the average of his 8:00 weight samples   in April (i.e.during 30 days) .

IMHO the different methods should not produce answers  as diverging as those given so far.

Edited on June 15, 2015, 5:51 pm
  Posted by Ady TZIDON on 2015-06-15 17:45:27

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