2. To determine what students at your school think about starting a lunch hour chess club,
would you:
a) ask everyone in Grade 4?
b) ask the teachers?
c) ask every tenth student as they enter the school in the morning?
Justify your selection.
c) ask every tenth student as they enter the school in the morning?
100
What is Miss B's favourite pop?
Coca-Cola.
200
Calculate the mean :
25, 10, 12, 14, 14, 14, 39, 26
154/8
=19.25
200
Name a disadvantage of using secondary data?
Answers may vary.
A disadvantage of using secondary data is that you might not know how credible the data is.
200
5. Mike wants to find out what type of music people like to listen to. He asks “Do you like rap or
pop music?”
Rewrite the question in order to eliminate bias.
Answers may vary.
200
Define Sample.
a small part or quantity intended to show what the whole is like
200
What are the key components of a graph?
X-Axis
Y-Axis
Legend
Title
300
A student received these marks on 7 math tests:
91%, 75%, 95% 80% 83% 86%, 58%
What mark will the student need to get on the 8th math test to make the following statement true.
The mode of the tests is 75%
75%
300
What is the key advantage of using mode as a measure of central tendency?
The only measure we can use when the data is not numerical
300
A group of 45 grade 1 students were surveyed about their favourite colour.
Here are there responses.
10 - Purple
12 - Green
15 - Red
8- Blue
If you were to create a pie graph, what would the section angle be representing those who prefer the colour purple!
(A) Jared hurries to the store before it closes, buys milk, then drives home more slowly.
(D) Mona bikes to her work, but then remembers that she has forgotten her purse. She bikes
back home, picks up the purse, and bikes back to work.
(C) Tanika engages in her choice of daily physical education by jogging to school at a constant rate of speed.
(B) John gets a ride to a friend’s house, waits while his friend gets ready, then walks to
school with his friend.
400
A student received these marks on 7 math tests:
91%
75%
95%
80%
83%
86%
68%
What mark would the 8th test have to be to make the following statement true?
The median of the tests is 84%
85%
400
What type of graph would you construct to show yearly sales of lamps? Justify your answer.
Answers may vary - points based on justification of answer.
400
CONGRATULATIONS! BEEHIVE BONUS MY FRIENDS.
400 POINTS AWARDED!
400
Find the mean, median and mode of this set of data.
Set A: 99, 99, 100, 100, 100, 100, 100, 101, 101
Mean: 900/9 =100
Median: 100
Mode: 100
400
Survey results of favourite sports in Grade 7.
Subject Frequency Fraction Percent Degree Calculation
Hockey 3
Soccer 6
B-ball 4
Total 13
Complete the chart (figure out fraction, percent, degree calculation
Miss B will double check this.
500
A student received these marks on 7 math test:
91%
75%
95%
80%
83%
86%
68%
What mark will the student need on the 8th test to make the following statement true.
The mean of the tests is 84%
94%
500
What is an advantage of using a census to collect data? What is a disadvantage?
Justify your answer.
Answers may vary!
Advantage: every unit of a population is accounted for
Disadvantage: time consuming, costly
500
Explain why this survey question might produce a biased response.
What is your favourite type of desert?
A) Ice-cream
B) Jello
C) Cake
D) Chocolate
Answers may vary!
500
This might be new to you -- but
What is an outlier/anomaly?
something that deviates from what is standard, normal, or expected
500
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YOU HAVE JUST EARNED YOUR TEAM A BEEHIVE BONUS!