Find the mode for the following: 36, 32, 31, 31, 29, 31, 30, 32, 40, 46, 31, 32, 35, 37, 40. If one observation 31 is replaced by 32, will the modal value change? If yes, find it
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Q4
If (31 + 15) + x = 31 + (15 + 23), then by associativity of addition x =
(a) 46 (b) 38 (c) 23 (d) 69
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Q5
(−37) + 6 = ?
(a) −43
(b) −31
(c) 31
(d) none of these