Answer:
Explanation:
(a). Mean:
( 12 + 13 + 3×14 + 15×3 + 16×2 + 17×3 + 18×5 + 19 + 20 + 21 + 22×2 ) ÷ 23 = 389 ÷ 23 ≈ 17
(b). Median: 17
(c). Mode: 18
(d). Range: 22 - 12 = 10
(e). Interquartile range: 3
(f). 15
(g). 18
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