Worksheets[Algebra 2] Unit 6 Review: Statistics
Total questions: 40
Worksheet time: 7hrs 11mins
A ___ is a large group that includes everything being studied.
Sample
Stratified Sampling Method
Population
Voluntary-Response
A ___ is a small portion of the population used to gather data from.
Systematic Sampling Method
Sample
Population
Bias
A poll is taken from 100 seniors in a high school where the senior class has 575 students. The 100 seniors is an example of a ______________.
Sample
Population
This is a form of:
Group businesses according to type: medical, retail, restaurant, hotel, other. Then select a random sample of 10 businesses from each type.
voluntary response
random
stratified
systematic
A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She selects the first five who raise their hands.
Systematic
Stratified
Self-Selected
Random
A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.
She selects a random student to start then picks the student in every 5th seat.
Random
Systematic
Voluntary Response
Stratified
Interview the first 30 students who enter the school in the morning.
What type of sampling method is this?
simple random
voluntary response
systematic
convenience
A principal orders t-shirts and wants to check some of them to make sure they were printed properly. She randomly selects 2 of the 10 boxes of shirts and checks every shirt in those 2 boxes.
What type of sampling method is this?
Simple Sampling
Stratified Sampling
Cluster Sampling
Systematic Sampling
A school chooses 3 randomly selected athletes from each of its sports teams to participate in a survey about athletics at the school.
What type of sampling method is this?
Simple Sampling
Stratified Sampling
Cluster Sampling
Systematic Sampling
If you wanted to determine if people who take vitamin C every day are less likely to get colds, what is the best method of data collection?
Cencus
Sample Survey
Experiment
Observational Study
What is the best data collection method to determine if not using car seat belts increases deaths in car accidents
Census
Sample Survey
Experiment
Observational Study
If you ask customers at a restaurant if pizza should be added to the menu, what kind of data collection is this?
Census
Sample Survey
Experiment
Observational Study
What should you use when determining the number of people who want hot dogs at your cookout?
Census
Sample
Simulation
Experiment
A student wants to know the most liked professor at her college. Which type of study would be the most practical to obtain this information?
a simulation
an experiment
a survey
an observation
20
3980
3700
796
35
45
82
164
Given the Math Grades:
75, 85, 77, 83 ,90 ,75, 91, 10, 86, 83
Which Center of Measure best represents this data?
Mean
Median
Mode
Range
Given the Math Grades:
71, 85, 77, 83 ,90 ,75, 91, 86, 83
Which Center of Measure best represents this data?
Mean
Median
Mode
Range
What is the P (x > 45)?
16%
64%
34%
13.5%
What is the P ( x < 63) ?
99.85 %
0.15 %
2.35 %
98.5 %
What is the P (x > 72) ?
97.5 %
2.5 %
98.5 %
13.5 %
What is the P (33 < x < 51) ?
81.5 %
13.5 %
68 %
83.5 %
What is the P(68 < x < 80) ?
49.85 %
2.35 %
99.85 %
47.5 %
What is the P(42 < x < 63) ?
0.15 %
50 %
49.85 %
47.5 %
What is the P (x < 21 and x > 39)?
16%
64%
49.85%
50.15%
What is the P(x > 42 and x < 35) ?
50 %
66 %
34 %
16%
What is the P(x < 84 and x > 88)?
16 %
13.5%
99.85 %
86.5 %
Then, 68% of all tires will have a life between ___________ km and __________ km.
The average waist size for teenage males is 29 inches with a standard deviation of 2 inches.
If waist sizes are normally distributed, determine the z-score of a teenage male with a 33 inch waist.
2
1
-2
-1
The mean temperature in Glens Falls for the month of February is 23 degrees with a standard deviation of 4.2 degrees. What is the z-score for a temperature of 17 degrees?
1
1.43
-1.43
11.5
Fernando is 60 inches tall. The average height for his age and gender is 68 with a standard deviation of 10 inches.
What percent of his peers are shorter than him?
(use z-score Table)
46.81%
8%
78.81%
21.19%
The mean GPA of students in a course at UCDavis is 3.2 with a standard deviation of 0.2.
What percent of students in the course have a GPA above 3.5?
(use z-score Table)
93.32%
47.5%
23.25%
6.68%
The average age of a group of fans at a hockey game is 34 years with a standard deviation of 8 years.
What percent of fans are older than 28 years old?
(use z-score Table)
22.66%
16.66%
77.34%
2.28%
A statistical study found that the average age for golf players if the PGA is 32 years old, with a standard deviation of 5.
What percentage of PGA golfers are older than 30?
(use z-score Table)
65.54 %
34.46 %
23.35 %
5.56 %
A statistical study found that the average income for high school students is $325 a month, with a standard deviation of $40.
What is the percentage of students that make less $413 a month?
(use z-score Table)
1.39 %
98.61 %
.9861%
.0139 %
