X bar - m=4 and xbar + 4 = 140 then m = ?
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3
Answer:
132
Step-by-step explanation:
xbar - m = 4 ...equa 1
xbar+ 4 = 140...equa 2
take equa 2
xbar= 140 - 4 ...make xbar subject of formula
xbar= 136 ..equa 3
substitute equa 3 into equa 1
136 - m = 4
m = 136-4
m = 132
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