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Answered Same DayNov 07, 2022University of Tasmania

Answer To: You are required to answer ALL SEVEN (7)questions.• Write your answer to each question, type and...

Rajeswari answered on Nov 08 2022
55 Votes
114088 assignment
Qno.1
a) Range: maximum is 40 and minimum is 15. Hence range is 25
b) Sum of
all entries – 270 and no of entries – 10. Mean – 270/10 = 27
Arrange all in ascending order. 15, 18,22,25,25, 28, 30, 32, 35, 40
Middle entries are 25 and 28. Median = average of 25 and 28 = 26.5
c) Quartile 1 is 25th percentile entry in ascending order arranged.
Quartile 1 = 22.75 and Quartile 3 is 31.5
d) Interquartile range = Q3-Q1 = 31.5-22.75 = 8.75. This gives an idea about spread in the middle of the distribution.
e) The distribution has a slight positive skewness.
f) Sample std deviation =(
Qno.2
Just total rows and columns and we replace question marks.
a) P(male student bought csl stock) = 55/140 = 0.393
b) P(Male/bought csl stock) = 55/no of males = 55/77 =0.714
c) P(Male/bought csl stock) does not equal P(Male). Hence there is no...
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