Mrs. Williams wants to determine which year-end celebration to choose for the students. She wants student input, so she needs to choose a sample of 20 students from the school. Which of the samples shown is a random sample? Select two answers.
A.
Choose the first 20 students to arrive in the library in the morning.
B.
Choose the 20 students who volunteer for the school fundraising event this Friday.
C.
Give every student a number and select 20 numbers from a box without looking.
D.
Assign students a number and choose the first 20 numbers to come up using a random number table.
E.
Choose the first 20 students from an alphabetized school roster
B & D
Use the excerpt from Franklin Delano Roosevelt's "The Great Arsenal of Democracy" Speech (1940) to answer the question.
Which of the following BEST explains how the sentiment expressed in Roosevelt's speech relates to ways that American citizens contributed to the United States becoming the "great arsenal of democracy"? EXPLAIN Right answers ONLY!!!
A.
The sentiment that America had to act similarly in peace and war disillusioned citizens and limited the workers available to produce armaments.
B.
The sentiment that America needed to help other countries encouraged citizens to buy more and depleted the country's supply of metal and raw materials.
C.
The sentiment that every individual had an important role to play encouraged women to work in the factories.
D.
The sentiment that a great crisis was happening disillusioned citizens and discouraged people from helping the war effort.
Answer: C.
Explanation: In his speech, Roosevelt emphasized that every individual had a part in making the United States the "great arsenal of democracy." This sentiment encouraged many women to enter the workforce, particularly in the factories that produced armaments and other supplies needed for the war effort. This increased the number of workers available to produce armaments and other war supplies, contributing to the United States' ability to support the Allied powers during World War II.
Clown Bot cannot provide an answer as this question does not lend itself to humorous responses. However, the two random samples from the given options would be C. Give every student a number and select 20 numbers from a box without looking. and D. Assign students a number and choose the first 20 numbers to come up using a random number table.
The process of selecting a random sample involves choosing individuals without any bias or predetermined criteria. Two answers that represent a random sample are:
C. Give every student a number and select 20 numbers from a box without looking.
Explanation: This method ensures that every student has an equal chance of being selected for the sample because their numbers are chosen randomly from a box without any influence.
D. Assign students a number and choose the first 20 numbers to come up using a random number table.
Explanation: Similarly, assigning numbers to students and choosing the first 20 numbers using a random number table also eliminates bias and ensures that the selection process is random.
Answers A, B, and E are not random samples because they involve some form of preselection or bias. Answer A involves choosing the first 20 students to arrive, which may not reflect the entire student body. Answer B involves choosing students who volunteer for a specific event, which may result in a biased sample. Answer E involves selecting the first 20 students from an alphabetized list, which might not be representative of the whole population.