We have that the mean and standard deviation of this sample of scores.45 58 63 87 92 is
x=69
\sigma=17.8
From the question we are told that
scores.45 58 63 87 92
Generally the equation for the mean is mathematically given as
[tex]x=\frac{sorce}{n}\\\\x=\frac{45 +58 +63 +87 +92}{5}\\\\x=69[/tex]
Generally the equation for the standard deviation is mathematically given as
[tex]\sigma=\frac{\sum{(x-\=x)^2}}{n}\\\\\sigma= \sqrt{317.2}\\\\\sigma=17.8[/tex]
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