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MAT07SPHS10038_Statistics_2.3d] [30/1/012/14:21:48] [1–2]
1 of 2
Homework sheet
Statistics 2
Name:
Due date:
Parent’s signature:
Part A
Part B: Review
/8
1 The daily temperatures (8C) in Alice Springs
Part B
/8
Part C
/8
Part D
/8
Total
over a week are shown below.
Tue
Wed
Thu
Fri
Sat
Sun
22
20
22
18
17
16
15
/32
Part A: Mental maths
l
Mon
a Write these temperatures in ascending order
and find the middle temperature.
Calculators are not allowed.
1 Draw a hexagon.
b Calculate the average temperature correct to
one decimal place.
c Draw a dot plot of the temperature data.
2 Convert 16 to a recurring decimal.
3 Evaluate –6 (–5) þ (–4).
4 Write an algebraic expression for the number
that is 10 less than y.
d What was the most common temperature?
5 Name a quadrilateral with 4 equal angles.
e On what day was the temperature lowest?
6 Use a factor tree to write 90 as a product of
f On how many days was the temperature
prime factors.
above 188C?
g Calculate the difference between the highest
and lowest temperatures.
7 Evaluate
2
3
5 4.
8 Find p.
p°
133°
© Cengage Learning Australia Pty Ltd 2011
64°
MAT07SPHS10038
Statistics and Probability: Data representation and interpretation
www.nelsonnet.com.au
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MAT07SPHS10038_Statistics_2.3d] [30/1/012/14:21:48] [1–2]
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Part C: Practice
Part D: Numeracy and literacy
l
Stem-and-leaf plots
1 Name the statistical measure that is:
l
The mean, mode, median and range
a calculated from the highest and lowest scores
1 a How many scores are shown on this stem-
of a data set
and-leaf plot?
b the most popular score(s) of a data set
Stem Leaf
1
2
3
4
3
0
1
2
6 8
2 4 4 5 6 9
4 5 5 5 7 8 8
5
c calculated from all the scores of a data set
2 What name is given to an extreme score in a
data set that is much different to the other
scores?
b What is the highest score?
c What is the most common score?
d What fraction of the scores are below 30?
2 The ages of students in an art class are:
3 The set of data below is in ascending order, with
& representing an unknown score.
3
3
4
8
&
12
40 33 26 69 45 22 24 48 33 37 26 30 26
a Find the range.
a Find the median age.
b Find a value of & if this set of data has two
modes.
b What is the outlier?
c Find the mean age correct to one decimal
place.
d Draw an ordered stem-and-leaf plot for the
ages.
© Cengage Learning Australia Pty Ltd 2011
MAT07SPHS10038
c Find a value of & if this set of data has one
mode.
d Find the value of & if this set of data has a
mean of 7.
Statistics and Probability: Data representation and interpretation
www.nelsonnet.com.au