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WorksheetsStatistical Analysis Practice
Total questions: 95
Worksheet time: 5hrs 5mins
**choose the best answer
Why is this graph misleading?
broken scale (doesn't start at 0)
uneven values on vertical axis
unequal spacing of lines
none of the above
Alden wanted to impress his parents by showing the rapid increase in his score on 5 tests. Which graph should he use to impress them?
Graph 1
Graph 2
Neither
Both
Which graph is misleading?
graph 1
graph 2
graph 3
graph 2 and 3
What is the error in this graph?
Title for the bar graph
width of a bar
key is not appropriate
scale is not even
What is wrong with this graph?
Not enough information.
The basketball ticket prices in 2001 were approximately 2 times as much as 1991, yet the size of the basketballs are about 4 times as big.
y axis scale is not uniform
Which is the best graph?
What is the best way to protect yourself against misleading graphs?
A.) Look at the visual representation only.
B.) Never trust graphed data again.
C.) Read the labels, the scale, the numbers, and the context.
D.) Look only at the curves and the trend of the data.
Skewed positively
Skewed negatively
Symmetrical
bimodal
What is the shape of this bar graph?
Skew right
Skew left
Symmetrical
uniform
Negatively Skewed
Positively Skewed
outliers
present - uncertain
negatively skewed
positively skewed
symmetrical
The shape of the data is positively skewed
Describe the shape of Daniel's data
skewed left
skewed right
symmetrical
Describe the shape of the data.
Symmetrical
Positively Skewed
Negatively Skewed
Skewed
A car salesman records information about the cars he is selling. The number of doors is _____ data
Nominal
Continuous
Discrete
Ordinal
A car salesman records information about the cars he is selling. The colour of each car is _____ data
Nominal
Continuous
Discrete
Ordinal
A woman is looking at a small, medium and large dress size. What data type does this example represent?
Categorical: Nominal
Categorical: Ordinal
Numerical: Discrete
Numerical: Continuous
A scientist is measuring the volume of air in a balloon. What data type does this example represent?
Categorical: Nominal
Categorical: Ordinal
Numerical: Discrete
Numerical: Continuous
A statistician is counting the amount of goals scored by a hockey team. What data type does this example represent?
Categorical: Nominal
Categorical: Ordinal
Numerical: Discrete
Numerical: Continuous
Film Classifications Australia must complete the rating of a new movie release between G Rated - R18+ Rated. What data type does this example represent?
Categorical: Nominal
Categorical: Ordinal
Numerical: Discrete
Numerical: Continuous
A coach measures the running time of their athletic team. What data type does this example represent?
Categorical: Nominal
Categorical: Ordinal
Numerical: Discrete
Numerical: Continuous
The height of a tree is being measured over time. What data type does this example represent?
Categorical: Nominal
Categorical: Ordinal
Numerical: Discrete
Numerical: Continuous
What data value is the upper quartile? (Q3)
Find the range of the data.
63, 71, 65, 66, 87, 53
32
33
34
35
Find the median, first quartile, third quartile, and interquartile range of the data.
32, 53, 72, 66, 47, 54, 49, 67, 71
MAke sure you can do this on your GC and also draw a box plot in real life and on your GC
Median: 54
First Quartile: 49
Third Quartile: 67
IQR: 18
Median: 54
First Quartile: 48
Third Quartile: 69
IQR: 21
Median: 54
First Quartile: 48
Third Quartile: 69
IQR: 22
Median: 54
First Quartile: 49
Third Quartile: 69
IQR: 20
Find the median, first quartile, third quartile, and interquartile range of the data.
203, 183, 212, 181, 157, 204, 189, 190
Median: 189
First Quartile: 182
Third Quartile: 203
IQR: 21
Median: 189.5
First Quartile: 182
Third Quartile: 203
IQR: 21
Median: 189
First Quartile: 182
Third Quartile: 203.5
IQR: 21.5
Median: 189.5
First Quartile: 182
Third Quartile: 203.5
IQR: 21.5
Find the median, first quartile, third quartile, and interquartile range of the data.
23, 33, 25, 16, 27, 43, 29, 40, 35
Median: 29
First Quartile: 24
Third Quartile: 37.5
IQR: 13.5
Median: 27
First Quartile: 25
Third Quartile: 35
IQR: 10
Median: 29
First Quartile: 25
Third Quartile: 37.5
IQR: 12.5
Median: 27
First Quartile: 24
Third Quartile: 35
IQR: 11
What is the standard deviation for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2
6.89
10.1
7.26
9
What is the standard deviation for the data given:
12, 13, 29, 18, 61, 35, 21
You should be able to do this with the formula and on your GC
293.67
15.87
17.14
41.98
5,11,2,12,4,2
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?
Set 1: {10, 19, 38, 50, 51}
Set 2: {5, 21, 26, 39, 51}
Set 3: {9, 38, 50, 50, 51}
Set 4: {5, 28, 28, 28, 51}
Which data set has the largest standard deviation?
How many male students were surveyed?
30
29
50
59
How many total people were surveyed?
78
22
70
100
How many total have an MP3 player?
13
57
70
100
What number should go in the blue box?
21
135
19
22
How many total did not attend the school play?
63
15
78
221
How many attended the basketball game but did not attend the school play?
63
55
118
88
How many people passed Art?
1
3
19
7
How many students studied English?
38
25
26
1
How many students were sureveyed altogether?
40
45
100
90
Allie wants to learn the most popular board game in the Australia, so she creates a poll and shares it on Twitter. Random or Biased?
Random
Biased
Anna wants to find out how Year1 0s at Wildy get to school so she places the names of all Year 10s into a fish bowl and pulls out 50 names so she can survey them. Random or Biased?
Random
Biased
A science teacher at Wildy wants to find out what is the most popular pet of students so she puts every student's name into a bucket and polls 30 students. Random or Biased?
Random
Biased
The student council sponsor asked every 10th student in the lunch line how they would prefer to be contacted with school news. Random or Biased?
Random
Biased
At her Rowing Training, Katie surveyed the athletes on her team to determine which sport teenagers like best. Random or Biased?
Random
Biased
A manager of a popular restaurant samples the receipts of every fifth customer to see if a dessert was ordered. Random or Biased?
Random
Biased
All year 10 students
Everyone in the Senior School
Mary wanted to know what 10C's favourite food was so she asked everybody in 10C.
Complete the definition:
A _________ consists of all subjects (human or otherwise) that are being studied
Statistics
Number
People
Population
Pueblo
Complete the definition:
A _______ is a subset of a population
sample
sampel
people
statistics
group
Population or Sample?
A survey of 1353 Australian households found that 18% of the households own a desktop computer.
Population
Sample
Population or Sample?
A recent survey of 2625 primary school children found that 48% of the children were spending more than the recommended amount of hours on electronic devices.
Population
Sample
Population or Sample?
All of the teachers in a school are surveyed on their meeting time preferences.
Population
Sample
Population or Sample?
Every fifth customer exiting a restaurant is surveyed on how well they liked the food.
Population
Sample
Which choice best represents a sample?
A mayor wanted to see if the people in her area thought she was doing a good job. Which choice best represents a sample?
The residents of the area
50 % of cars recorded on which road were travelling faster than 45mph?
Jesfferson Road
Hayes Road
25% of all top selling lunch items at Sophie's Cafe are $8 or more
50% of all top selling lunch items at The Red Brick Grill are $7 or more
50% of all top selling lunch items at The Red Brick Grill cost less than $5
25% of all top selling lunch items at Sophie's Cafe cost less than $7
The Sample standard deviation formula is
True
False
I can use my graphics calcultor to calculte Mean, median and mode.
Yes
No
I can use my Graphics claculator to calculte the Standard deviation of a sample.
Yes
No
I can use the formula to find the standard deviation of a sample?
No
Yes
I can draw boxplots with my Graphic calcultor and by hand.
No
Yes
