Question 1170316
The median is the same as the mean in a normal distribution, so Md=10%
95% is +/-1.96 sd from the mean included
that is +/-0.392 or 0.4 (9.6%, 10.4%) rounding
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Middle half is +/- 0.2500 probability from the mean.
This is z=+/-0.675 or 0.135%
the interval is (9.865%, 10.135%)