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16-11-2019
Mathematics

contestada

calculate the mean and standard deviation 3,5,6,9,11,12,17

Respuesta :

BivashKC BivashKC

16-11-2019

Answer:

9 and 3.35 respectively

Step-by-step explanation:

Mean=Sum of data÷No. of data

=(3+5+6+9+11+12+17)÷7

=63÷7

=9

Standard Deviation=√{(sum of squares of data÷no. of data)-(sum of data÷no. of data)

=√(705÷7)-(63÷7)

=√100.71÷9

=√11.19

=3.35

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