A recent straw poll was taken from 10 individuals with ages ranging from 25-45 y

Question

A recent straw poll was taken from 10 individuals with ages ranging from 25-45 years old. The annual income of these individuals were taken down and presented below (in singapore dollars) as follows:

34,567 121,389 281,937 72,978 65,218
99,999 100,948 95,211 86,376 71,960

Calculate the following and round to the nearest cent. Show ALL workings clearly as marks will be awarded for proper workings and answers.

A) Arithmetic mean;
B) Mode;
C) Median;
D) Sample Variance;
E) Population standard deviation;
F) First quartile;
G) Third quartile;
H) Inter-quartile range;
I) State any outliers present by calculating the upper and lower fences.

Ans A)103,058.3
Ans B)No mode
Ans C)90,793.5
Ans D)4,520,241,222.2
Ans E)63,782.6
Ans F)68,589
Ans G)111,168.5
Ans H)42,579.5
Ans I)There are no outliners by using lower & upper fence rules.

Explanation / Answer

As far as I see they all correct.

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