Statistics
Samples and Populations
Angles and Angle Pairs
Review
100
This is found when subtracting the Quartile 1 value from the Quartile 3 value. It represents 50% of the data in a box plot.
What is the IQR (Interquartile Range)?
100
A ______ sample is a subgroup of a population that matches the general characteristics of the entire population.
What is a representative sample?
100
Find the measures of the missing angles.
What are 75 degrees (d) and 105 degrees (c and e)?
100
Jamie bought a music player on sale for $65. The original price was $80. Find the percent discount that she received.
What is 18.75%?
200
The measure of center that is used when there are outliers.
What is the median?
200
Riley wanted to know how the students in her school felt about the school's dress code policy. Since she was in science class at the time, she decided to ask the students in her science class. Name the type of sample that she used.
What is a convenience sample?
200
Two angles whose measures have a sum of 90 degrees.
What are complementary angles?
200
Find the missing numbers in the diamond.
What are 2/7 (two-sevenths) and -15/14 (negative fifteen-fourteenths)?
300
Two box plots on the same number line that help to compare data.
What are parallel box plots? (What is a double box plot?)
300
Rosario wanted to know how the students in her school felt about climate change. She set up a booth during lunch for a week so that students could stop by and answer questions. Name the type of sample that she used.
What is a voluntary response sample?
300
The measure of this angle must be greater than 0 degrees and less than 90 degrees.
What is an acute angle?
300
Solve the equation:
What is x = 14?
400
The following numbers represent the ages of neighbors in a 55+ community.
67, 61, 69, 72, 71, 65, 67, 67, 57, 68, 71, 72, 61, 59, 62
Sally is going to create a histogram with a bin width of 5. Which bin will have the highest frequency?
What is 65-70?
400
A 2008 study concluded that children that play violent video games are more aggressive in real life. Children ages 9 to 12 were studied to determine how much they played violent video games; peers and teachers were asked how much these students hit, kicked, and got into fights with other students.
Can you legitimately conclude from this study that teenagers who play violent video games tend to be more aggressive? Why or why not?
No. Only children ages 9-12 were studied and teenagers were not part of the study.
400
Find the measure of the missing angle.
What is 100 degrees?
400
Solve the equation:
5(x − 2) = 20x − 40
What is x = 2?
500
Find the median and the IQR of the data set represented below.
What are 80 (median) and 14 (IQR)?
500
A 2008 study concluded that children that play violent video games are more aggressive in real life. Children ages 9 to 12 were studied to determine how much they played violent video games; peers and teachers were asked how much these students hit, kicked, and got into fights with other students.
Can you legitimately conclude from this study that children ages 9 to 12 who play violent video games are more likely to commit violent crimes? Why or why not?
No. Crime rates were not studied.
500
Find the measures of the missing angles.
What are 70 degrees (i), 60 degrees (g), and 50 degrees (h)?
500
Jeanie paid $50 for a sweater that was on sale for 15% off. Find the original price of the sweater.
What is $58.82?
600
Identify the class period that was more consistent with their test scores.
What is 2nd period?
600
A 2008 study concluded that children that play violent video games are more aggressive in real life. Children ages 9 to 12 were studied to determine how much they played violent video games; peers and teachers were asked how much these students hit, kicked, and got into fights with other students.
Can you legitimately conclude from this study that children ages 9 to 12 who play violent video games tend to hit and kick more in school?
This study does indicate a relationship because it asked how often children hit, kicked, and got into fights in school.
600
The sum of the measures of the interior angles of any triangle is _____ degrees.
The sum of the measures of the interior angles of any quadrilateral is _____ degrees.
What are 180 and 360?
600
Bob’s favorite oatmeal raisin cookie recipe use 3 cups of raisins for 5 dozen cookies. How many cups of raisins are needed for 40 dozen cookies?
What is 24 cups of raisins?