Statistics

2.3 The five-number summary

a) What is the size of the data set above? n = ___________

b) Reorder the data set smallest to largest.

c) Determine the smallest and largest values. MIN = __________ MAX = ____________

d) Determine the median. MED = _____________

e) The median divides the data into two halves. Find the median of the lower half. Q1 =____________ This is the first quartile (the 25th percentile) Find the median of the upper half. Q3 =____________ This is the 3rd quartile (the 75th percentile)

f) The range is MAX – MIN. Find the range of the data set. Range = ___________

g) The Interquartile range (IQR) is Q3 – Q1. Find the IQR. IQR = ___________

h) What is the size of the data set above? n = ___________

i) Reorder the data set smallest to largest.

j) Determine the smallest and largest values. MIN = __________ MAX = ____________

k) Determine the median. MED = _____________

l) The median divides the data into two halves.

Find the median of the lower half. Q1 =____________ This is the first quartile (the 25th percentile) Find the median of the upper half. Q3 =____________ This is the 3rd quartile (the 75th percentile)

m) The range is MAX – MIN. Find the range of the data set. Range = ___________

n) The Interquartile range (IQR) is Q3 – Q1. Find the IQR. IQR = ___________

333 62 0 8 646 6 153 41 215 184 2 142

339 20 92 4 326 402 459 506 248 12 169 240

Ques #1

Ques #2