Download Tuesday

This week in Math
Statistics and Probability
Monday – Mean, Median,
Mode, Range
Tuesday – Using mean and
median to compare data
Wednesday – Using range and
interquartile range to compare
data
Thursday – Mean Absolute
Deviation (get MAD!)
Friday - Test
Homework
Day
Section Problems (pages) Due
Monday
15-1
1-10 (371-373)
Tuesday
Tuesday
15-3
1-9 (383-385)
Wednesday
Wednesday
15-4
1-10 (389-393)
Thursday
Objectives and I Can…
7.SP.1 Understand that statistics can be used to gain
information about a population by examining a
sample of the population; generalizations about a
population from a sample are valid only if the sample
is representative of that population. Understand that
random sampling tends to produce representative
samples and support valid inferences.
I CAN…Examine a sample of a population to gain
information about the population
Objectives and I Can…
7.SP.4 Use measures of center and measures of variability
for numerical data from random samples to draw informal
comparative inferences about two populations. For example,
decide whether the words in a chapter of a seventh-grade
science book are generally longer than the words in a chapter
of a fourth-grade science book.
I CAN…Compare two sets of data by using the centers
(means and/or medians)
I CAN…Compare two sets of data by using the measures of
variability (mean absolute deviation and/or interquartile range)
Objectives and I Can…
7.SP.3 Informally assess the degree of visual overlap of two
numerical data distributions with similar variabilities,
measuring the difference between the centers by expressing it
as a multiple of a measure of variability. For example, the
mean height of players on the basketball team is 10 cm
greater than the mean height of players on the soccer team,
about twice the variability (mean absolute deviation) on either
team; on a dot plot, the separation between the two
distributions of heights is noticeable.
I CAN…Assess the similarities and differences between two
data sets
3.
A
4 days
B
8 days
C
12 days
D
15 days
A pie recipe requires
Warmup
𝟑𝟑
𝟓𝟓
cup of sugar for every 2 cups of flour. If 6 cups of flour are
used, how much sugar is needed?
A
B
1
10
1
cup
5
4
C
1
D
3
Page 2
cup
5
3
5
cups
cups
Go to the next page
7.RP.3
9.
B
Lizzy earns $10 per hour.
C
Lizzy earns $9 per hour.
D
Lizzy earns $8 per hour.
Warmup
The number of points scored on a test is proportional to the number of correct
answers. A student had 5 correct answers on the test and scored a 20.
Which equation represents the relationship between the score on the test, y, and the
number of correct answers, x ?
A
5y = x
B
4y = x
C
y = 4x
D
y = 20x
Page 5
Go to the next page
7.RP.2.c
D
6
Warmup
19. The dimensions of a rectangle are divided into two parts. The image is not drawn to
scale.
x + 3y
x
y
Which expressions represent the perimeter of the whole rectangle? Select ALL that
apply.
A
2x + 4y
B
2x + 2y
C
2(2x + 4y )
D
2(x + 3y )
E
2x + 6y + 2x + 2y
F
2x + 2x + 4y + 4y
7.EE.1
B
D
Warmup
23. Which expression is equivalent to 5(2y + 8) − 12?
A
10y + 4
B
10y + 20
C
10y + 28
D
10y + 52
24. Two music websites, P and Q, had the same initial joining fee
next month, both websites increased their joining fees. Webs
20%, and website Q increased its fee by 25%.
7.EE.1
If website P increased its fee by $4, by what amount did web
Test Codes
1st period:
4th period:
5th period:
6th period:
7th period: