11. Summary Statistics
Interactive practice questions
Consider the data set $9,5,6,3,9,8,4,2,3,2$9,5,6,3,9,8,4,2,3,2.
a
Calculate the mean to two decimal places.
b
Calculate the median.
c
Calculate the value of quartile $1$1.
d
Calculate the value of quartile $3$3.
e
Calculate the value of decile $2$2.
f
Calculate the value of decile $8$8.
g
Calculate the value of the percentile $43$43.
h
Calculate the value of the percentile $88$88.
Easy
6min
Using the data provided in the table:
Easy
2min
Fred was told he was ranked in the $80$80th percentile for mathematics in an end of year exam.
However, his teacher only posted a list of results, without names, as shown below.
Hard
2min
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