The age (years) of some members in a singing group are: 1...
The age (years) of some members in a singing group are: 12, 47, 49, 15, 43, 41, 13, 39, 43, 41 and 36.
Find the lower quartile
12
13
15
20
Correct answer is C
Rearranged: 12,13,15, 36, 39, 41, 41, 43, 43, 47 and 49
Lower quartile or First quartile = totalnumberofitems4
If odd: items numbers + 1 → 11items+14
= 124
Lower quartile = 3rd iems →15
simplify; 2log3 6 + log3 12 - log3 16...
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