Answer:
Mean= sum of all observation/Total observation
=4+5+6+7+7+8+9+13+12+8+8+9+8+10+11/15
= 125/15
= 8.333.....
Median= (n/2+1)
=( 15/2+1)
= 16/2
= 8
Mode = 8
Because 8 is more time come in all number
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Answer:
Mean= sum of all observation/Total observation
=4+5+6+7+7+8+9+13+12+8+8+9+8+10+11/15
= 125/15
= 8.333.....
Median= (n/2+1)
=( 15/2+1)
= 16/2
= 8
Mode = 8
Because 8 is more time come in all number