Which of the following has the same mean, median and mode? (a) 6, 2, 5, 4, 3, 4, 1 (c) 2.3.7.3,8.3,2 (b) 4, 2, 2, 1, 3, 2, 3 (d) 4.3, 4, 3, 4, 6, 4
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Step-by-step explanation:
A. Mean =(6+2+5+4+3+4+1)÷7
=25/7
Mode=4
Median=[(7+1)÷2]th observation
= 4th obs.
=4
B. Mean =(2+3+7+3+8+3+8)÷7
=4
Mode=3
Median=[(7+1)÷2]th observation
= 4th obs.
=3
C. Mean=(4+2+2+1+3+2+3) ÷7
=17/7
Mode=2
Median=[(7+1)÷2]th observation
= 4th obs.
=1
D. Mean=(4+3+4+3+4+6+4)÷7
=4
Mode=4
Median=[(7+1)÷2]th observation
= 4th obs.
=3
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