B Minerals must be solid, have an orderly atomic structure, have a recognized chemical composition, be naturally occurring, and
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Step by step solution :
standard deviation is given by :
where, is standard deviation
is mean of given data
n is number of observations
From the above data,
Now, if , then
If , then
if , then
If , then
If , then
so,
No, Joe's value does not agree with the accepted value of 25.9 seconds. This shows a lots of errors.
I showed my working in the images above. if you have any questions please feel free to ask
