Lesson
Quizzes
1-1
Evaluating
Algebraic Expressions
Preview
11-1: Line Plots and Stem-and-Leaf Plots
11-2: Mean, Median, Mode, and Range
11-3: Box-and-Whisker Plots
11-4: Scatter Plots
11-5: Probability
11-6: Experimental Probability
11-7: Theoretical Probability
11-8: Independent and Dependent Events
Holt CA Course 2
11-1
Plots and Stem-and-Leaf
1-1 Line
Evaluating
AlgebraicPlots
Expressions
Lesson Quiz: Part I
The data shows the ages of some hospital nurses.
33, 35, 23, 39, 23, 24, 34, 21, 57, 45, 57, 60, 45,
24, 31, 42, 61, 45, 35, 38
1. Make a line plot of the data. What age occurs most
often? 45
x
x
x
21
23 24
Holt CA Course 2
x
x
x
x
x
x
x
31
33
34
35
x
x
x
x
x
x
38
39
42
45 57
x
x
x
x
60 61
11-1
Plots and Stem-and-Leaf
1-1 Line
Evaluating
AlgebraicPlots
Expressions
Lesson Quiz: Part II
The data shows the ages of some hospital nurses.
33, 35, 23, 39, 23, 24, 34, 21, 57, 45, 57, 60, 45,
24, 31, 42, 61, 45, 35, 38
2. Make a stem-and-leaf plot of the data. How many
nurses are over the age of 45? 4
Key: 4 | 2 means 42.
Holt CA Course 2
Nurses’ Ages
Stems Leaves
2
1 3 3 4 4
3
1 3 4 5 5 8 9
4
2 5 5 5
5
7 7
6
0 1
11-2
Median, Mode,
and Range
1-1 Mean,
Evaluating
Algebraic
Expressions
Lesson Quiz: Part I
1. Find the mean, median, mode, and range of
the data set.
8, 10, 46, 37, 20, 8, and 11
mean: 20; median: 11; mode: 8; range: 38
Holt CA Course 2
11-2
Median, Mode,
and Range
1-1 Mean,
Evaluating
Algebraic
Expressions
Lesson Quiz: Part II
2. Identify the outlier in the data set, and determine
how the outlier affects the mean, median, and
mode of the data.
85, 91, 83, 78, 79, 64, 81, 97
The outlier is 64. Without the outlier the mean is
85, the median is 83, and there is no mode. With
the outlier the mean is 82, the median is 82, and
there is no mode. Including the outlier decreases
the mean by 3 and the median by 1, there is no
mode.
Holt CA Course 2
11-3
Plots
1-1 Box-and-Whisker
Evaluating Algebraic
Expressions
Lesson Quiz: Part I
Find the lower and upper quartiles for each
data set.
1. 48, 52, 68, 32, 53, 47, 51
lower = 47; upper = 53
2. 3, 18, 11, 2, 7, 5, 9, 6, 13, 1, 17, 8, 0
lower = 2.5; upper = 12
Holt CA Course 2
11-3
Plots
1-1 Box-and-Whisker
Evaluating Algebraic
Expressions
Lesson Quiz: Part II
Use the following data for problems 3 and 4.
91, 87, 98, 93, 89, 78, 94
3. Make a box-and-whisker plot.
78
87
91
94
98
4. What is the median and range of the data?
91; 20
Holt CA Course 2
11-4
Plots
1-1 Scatter
Evaluating
Algebraic Expressions
Lesson Quiz: Part I
1. Use the given data to make a scatter plot.
11
Grading Period 1
Number of A’s
5
2 3
4
6 8 10
Number of A's
10
9
8
7
6
5
4
3
2
1
0
0
1
2
3
Grading Period
Holt CA Course 2
4
11-4
Plots
1-1 Scatter
Evaluating
Algebraic Expressions
Lesson Quiz: Part II
Identify the correlation that you would expect
to see between each pair of data sets.
2. the minimum wage and the year
positive correlation
3. the amount of precipitation and the day of the
week
no correlation
4. the amount of germs on your hands and the
number of times you wash your hands in a day
negative correlation
Holt CA Course 2
11-5
1-1 Probability
Evaluating
Algebraic Expressions
Lesson Quiz
Use the table to find the probability of each
event.
1. 1 or 2 occurring 0.351
2. 3 not occurring 0.874
3. 2, 3, or 4 occurring
0.794
Holt CA Course 2
11-6
Probability
1-1 Experimental
Evaluating
Algebraic
Expressions
Lesson Quiz: Part I
1. Of 425,234 seniors were enrolled in a math
course. Estimate the probability that a
randomly selected senior is enrolled in a
math course. 0.55, or 55%
2. Mason made a hit 34 out of his last 125
times at bat. Estimate the probability that he
will make a hit his next time at bat.
0.27, or 27%
Holt CA Course 2
11-6
Probability
1-1 Experimental
Evaluating
Algebraic
Expressions
Lesson Quiz: Part II
3. Christina polled 176 students about their
favorite yogurt flavor. 63 students’ favorite
flavor is vanilla and 40 students’ favorite
flavor is strawberry. Compare the probability
of a student’s liking vanilla to a student’s
liking strawberry.
about 36% to about 23%
Holt CA Course 2
11-7
Probability
1-1 Theoretical
Evaluating
Algebraic
Expressions
Lesson Quiz
An experiment consists of rolling a fair
number cube. Find each probability.
1
1. P(rolling an odd number)
21
2. P(rolling a prime number)
2
An experiment consists of rolling two fair
number cubes. Find each probability.
1
3. P(rolling two 3’s) 36
4. P(total shown > 10) 1
12
Holt CA Course 2
11-8 Independent
andAlgebraic
Dependent Events
1-1
Evaluating
Expressions
Lesson Quiz
Determine if each event is dependent or
independent.
1. drawing a red ball from a bucket and then
drawing a green ball without replacing the
first dependent
2. spinning a 7 on a spinner three times in a row
independent
3. A bucket contains 5 yellow and 7 red balls. If 2
balls are selected randomly without
replacement, what is the probability that they
will both be yellow? 5
33
Holt CA Course 2