Question

1.find the average of the following:-. (a)20;30;40;50;60;70;80;90;100;110
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Answer 1

Answer:

the average is 65.

Step-by-step explanation:

average= sum of all observations

number of observations

average=20+30+40+50+60+70+80+90+100+110

10

average=650

10

average=65

Answer 2

Answer:

55 is the mean for dataset 10, 20, 30, 40, 50, . . . . , 90 & 100 from which the standard deviation about to be measured to estimate the common variation of the sample or population dataset from its central location.

Step-by-step explanation: