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Monthly sales figures for a store are as given below:
jan
$62k
feb
$71k
mar
$68k
apr
$47k
may
june
$69k
july
$80k
aug
$75k
sep
$87k
oct
$77k
nov
$63k
dec
$70k
Find out the:
a. Mid-range
b. Standard Variance
c. Standard Deviation
Statistics and Probability, Statistics
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