Quiz about CCA2 B Final Review LT 9-10

Question 1

Find the sum.

Accepted Answer

-1475

Answer

-1020

Answer

1475

Answer

-1389

Question 2

What is the sum of the first 50 terms of the series 2 + 17 + 32 + 47 + ...?

Accepted Answer

18,475

Answer

1,600

Answer

18,235

Answer

19,125

Question 3

What is the least biased way to survey high school students on whether they play video games in their spare time or not.

Accepted Answer

Randomly choose a sample of 100 students from BHS by using a random # generator.

Answer

Give a survey to the gaming club at their after school meeting.

Answer

Survey every 3rd person that walks into Mrs. Belting's 9th grade algebra classes.

Answer

Put a poll on the Blaine High School website for students to answer whether they play or not.

Question 4

Find the sum.

Accepted Answer

6371.77

Answer

6401.99

Answer

6229.54

Answer

5970.25

Question 5

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first 30 students who come into her class.

Accepted Answer

Convenience Sampling

Answer

Systematic Random Sampling

Answer

Simple Random Sampling

Answer

Volunteer response

Question 6

Find the sum.

Accepted Answer

NO SUM

Answer

-3

Answer

3

Question 7

The front row of a theater has 25 seats. Each of the other rows has 3 more seats than the row before it. What is the total number of seats in the first 15 rows?

Accepted Answer

690 seats

Answer

712 seats

Answer

67 seats

Answer

510 seats

Question 8

This sample is selected by dividing the population into subgroups and then taking a fixed number of units from each group using the simple random sample.

Accepted Answer

stratified

Answer

cluster

Answer

judgment

Answer

experimental

Question 9

Mrs. Trahan samples her class by selecting every third person on her class list.  Which type of sampling method is this?

Accepted Answer

Systematic

Answer

Simple

Answer

Stratified

Answer

Cluster

Question 10

Find the sum: 11 + 15 + 19 + .......+ 83

Accepted Answer

893

Answer

19

Answer

83

Answer

624

Question 11

Find the sum for the following series.

$$\sum_{n=1}^63\left(2\right)^{n-1}$$

Accepted Answer

189

Answer

-44

Answer

378

Answer

324

Question 12

What is the sum of the first 10 terms for the following geometric series: 2+6+18+54+...

Accepted Answer

59048

Answer

-29524

Answer

524288

Answer

3069

Question 13

Find the sum.

Accepted Answer

40

Answer

NO SUM

Answer

9.25

Answer

13.33

Question 14

16 out of the 20 people who called into a radio station said that they enjoy the station's morning programming. What type of bias is demonstrated here?

Accepted Answer

Voluntary Response Bias

Answer

Nonresponse Bias

Answer

Undercoverage Bias

Question 15

Is this question biased or fair?

"Do you prefer the natural beauty of hardwood floors over outdated laminate?"

Accepted Answer

biased

Answer

fair

Question 16

Find the sum.

Accepted Answer

92

Answer

107

Answer

89

Answer

184

Question 17

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected.

Accepted Answer

simple random sample

Answer

systematic

Answer

convenience

Answer

Self - selected (volunteer)

Question 18

Marcos wants to find out how many students at his school like to go to the movies. Which survey method is likely to produce a representative survey?

Accepted Answer

Ask the 25 students in his homeroom class.

Answer

Ask the boys in the boys locker room.

Answer

Ask students coming out of a movie theater.

Answer

Ask half of the 34 students on the soccer team.

Question 19

Find the sum

$$\sum_{n=1}^{11}9\left(0.5\right)^{n-1}$$

Accepted Answer

17.99

Answer

5.68

Answer

17.98

Answer

8.996

Question 20

In an INFINITE GEOMETRIC Series.... given S=22 and $$a_1$$ =16.5, find r.

Accepted Answer

0.25

Answer

0.45

Answer

0.75

Answer

1.2

Question 21

Data collection is the process of...

Accepted Answer

gathering and measuring information on variables of interest

Answer

gathering and measuring books on variables of interest

Answer

gathering and measuring newspapers on variables of interest

Answer

gathering and measuring diaries on variables of interest

Question 22

What is a survey?

Accepted Answer

A tool used to collect statistical data

Answer

Statistics collected from an entire population

Answer

An element or feature that can vary

Answer

A group chosen from a population

Question 23

Determining if students using a calculator on a math final exam score better than students who do not use a calculator by looking at test scores and who used a calculator.

Accepted Answer

Observational Study

Answer

Cenus

Answer

Sample Survey

Answer

Experiment

Question 24

Randomly assign participants to taste one of two types of orange juice to determine which one is preferred by customers

Accepted Answer

Experiment

Answer

Census

Answer

Sample Survey

Answer

Observational Study

Question 25

Asking students in your school how many hours a week do they play video games.

Accepted Answer

Sample Survey

Answer

Census

Answer

Experiment

Answer

Observational Study

Question 26

Testing to see if eating candy during a test helps improve test scores. A teacher randomly assigns one class to get candy while the other class does not and then compares the scores.

Accepted Answer

Experiment

Answer

Census

Answer

Sample Survey

Answer

Observational Study

Question 27

Determine if not using car seat belts increases deaths in car accidents

Accepted Answer

Observational Study

Answer

Census

Answer

Sample Survey

Answer

Experiment

Question 28

They pull records to decide if computer games are more effective than paper and pencil drills for children learning the multiplication tables.

Accepted Answer

Observational Study

Answer

Census

Answer

Sample Survey

Answer

Experiment

Question 29

Asking customers at a restaurant if pizza should be added to the menu.

Accepted Answer

Sample Survey

Answer

Census

Answer

Experiment

Answer

Observational Study

Question 30

A random selection of people are called every morning for a week to determine if television shows are too violent.

Accepted Answer

Sample Survey

Answer

Census

Answer

Experiment

Answer

Observational Study

Question 31

All BHS students were asked their thoughts on the new pass system.

Accepted Answer

Census

Answer

Sample Survey

Answer

Experiment

Answer

Observational Study

Question 32

Interview the first 30 students who enter the school in the morning.

Accepted Answer

convenience

Answer

simple random

Answer

voluntary response

Answer

systematic

Question 33

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected.

Accepted Answer

simple random sample

Answer

systematic

Answer

convenience

Answer

volunteer response

Question 34

Marianne wanted to know students' opinion on the new schedule at school. She places all students' names in a container and picks out 20 to survey.

Accepted Answer

Simple random Sampling

Answer

Convenience Sampling

Answer

Systematic Sampling

Answer

Volunteer response

Question 35

Why do we randomly select our samples?

Accepted Answer

to reduce bias

Answer

to increase bias

Answer

so we don't get the same answers from everyone

Answer

because it's easier

Question 36

Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.
This is a form of:

Accepted Answer

Systematic Sampling

Answer

Random Sample

Answer

Convenience Sampling

Answer

Voluntary Response

Question 37

Farmer Joe's apple tree farm is set up in 100 rows.  He counts the number of apples produced on every 10th row to estimate the number apples produced on the whole farm.  This is _____________ sampling.

Accepted Answer

Systematic

Answer

Random

Answer

Stratified

Answer

Voluntary-Response

Question 38

A ___ is a small portion of the population used to gather data from.

Accepted Answer

Sample

Answer

Systematic Sampling Method

Answer

Population

Answer

Bias

Question 39

A ___ is a large group that includes everything being studied.

Accepted Answer

Population

Answer

Sample

Answer

Stratified Sampling Method

Answer

Voluntary-Response

Question 40

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 50 blocks and survey all households on each selected block.
This is an example of:

Accepted Answer

Cluster Random Sample

Answer

Simple Random Sample

Answer

Stratified Random Sample

Answer

Systematic Random Sampling

Question 41

What type of Sampling?

An auto analyst is conducting a satisfaction survey, sampling from a list of 10,000 new car buyers. The list includes 2,500 Ford buyers, 2,500 GM buyers, 2,500 Honda buyers, and 2,500 Toyota buyers. The analyst selects a sample of 400 car buyers, by randomly sampling 100 buyers of each brand.

Accepted Answer

Stratefied

Answer

Random

Answer

Systematic

Answer

Cluster

Question 42

What type of Sampling?

At a local community college, five math classes are randomly selected out of 20 and all of the students from each class are interviewed.

Accepted Answer

Cluster

Answer

Random

Answer

Stratefied

Answer

Systematic

Question 43

What type of Sampling?

A community college student interviews everyone in a biology class to determine the percentage of students that own a car.

Accepted Answer

Convenience

Answer

Random

Answer

Systematic

Answer

Voluntary

Question 44

What type of Sampling?

A radio station asks its listeners to call in their opinion regarding the use of American forces in peacekeeping missions.

Accepted Answer

Voluntary

Answer

Random

Answer

Convenience

Answer

Systematic

Question 45

Find the sum of the series.

47 + 34 + 21 + ... + (-83)

Accepted Answer

-198

Answer

11

Answer

1950.5

Answer

-13

Question 46

Find the sum of the series.

4 + 1 + 0.25 +...

Accepted Answer

5.333

Answer

4

Answer

0.25

Question 47

Find the sum of the series.

2 + 4 + 8 + ... + n=15

Accepted Answer

65,534

Answer

32,768

Answer

r = 2

Answer

-2

CCA2 B Final Review LT 9-10

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics