Answer:
Explanation:
Mean = (22+30+26+39+40+35) / 6
= 32.
Arranging in ascending order:
22 26 30 35 39 40
The median = (30+35)/2 = 32.5.
There is NO Mode.
Standard deviation:
Deviations from mean:
22 - 32 = -10
26 - 32 = -6
39 - 32 = -2
35 - 32 = 3
39 - 32 = 7
40 - 32 = 8
Squares of the deviation = 100, 36, 4, 9, 49 and 64.
The sum of these deviations = 262
It is sample data so:
Square of standard deviation =
sum of deviations / (number of values - 1)
= 262 / (N - 1)
= 262/5
= 52.4
So Std Dev = √52.4 = 7.24 to nearest hundredth.