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Lesson Topics Discussion Quiz: Class Homework

Quiz Discussion

Title: Statistics

Grade Lesson s6-p1

Explanation: Let us discuss a few questions on this topic and review the answers to every question.

Quiz: Discussion

Discussion: Steps1 Steps2 Steps3 Steps4 Steps5

Id	Name	Note
Steps-1	Data set A consists of 10 positive integers less than 60. The list shown gives 9 of the integers from data set A. 40, 47, 43, 50, 55, 52, 56, 58, and 59. The mean of these 9 integers is 42. If the mean of data set A is an integer that is greater than 42, what is the value of the largest integer from data set A?	A) 59 B) 60 C) 62 D) 64
Steps-2	For x > 0, which of the following is true about the values of \$4^x\$ and 3x + 2?	A) As x increases, the values of \$4^x\$ decrease exponentially. B) As x increases, the values of \$4^x\$ increase exponentially. C) As x decreases, the values of \$4^x\$ increase exponentially. D) As x decreases, the values of \$4^x\$ decrease exponentially.
Steps-3	If you randomly select two cards from a standard deck of 52 playing cards, what is the probability that both cards are aces?	A) \$1 / (74)\$ B) 74 C) \$1 / (221)\$ D) 221
Steps-4	Near the end of a US cable news show, the host invited viewers to respond to a poll on the show’s website that asked, “Do you support the new federal policy discussed during the show?” At the end of the show, the host reported that 28% responded “Yes,” and 70% responded “No.” Which of the following best explains why the results are unlikely to represent the sentiments of the population of The United States?	A) The percentages do not add up to 100%, so any possible conclusions from the poll are invalid. B) Those who responded to the poll were not a random sample of the population of the United States. C) There were not 50% “Yes” responses and 50% “No” responses. D) The show did not allow viewers enough time to respond to the poll.
Steps-5	A psychologist designed and conducted a study to determine whether playing a certain educational game increases middle school students’ accuracy in adding fractions. For the study, the psychologist chose a random sample of 35 students from all of the students at one of the middle schools in a large city. The psychologist found that students who played the game showed significant improvement in accuracy when adding fractions. What is the largest group to which the results of the study can be generalized?	A) The 35 students in the sample. B) All students at the school. C) All middle school students in the city. D) All students in the city.

Name

Note

Steps-1

Data set A consists of 10 positive integers less than 60. The list shown gives 9 of the integers from data set A. 40, 47, 43, 50, 55, 52, 56, 58, and 59. The mean of these 9 integers is 42. If the mean of data set A is an integer that is greater than 42, what is the value of the largest integer from data set A?

A) 59

B) 60

C) 62

D) 64

Steps-2

For x > 0, which of the following is true about the values of \$4^x\$ and 3x + 2?

A) As x increases, the values of \$4^x\$ decrease exponentially.

B) As x increases, the values of \$4^x\$ increase exponentially.

C) As x decreases, the values of \$4^x\$ increase exponentially.

D) As x decreases, the values of \$4^x\$ decrease exponentially.

Steps-3

If you randomly select two cards from a standard deck of 52 playing cards, what is the probability that both cards are aces?

A) \$1 / (74)\$

B) 74

C) \$1 / (221)\$

D) 221

Steps-4

Near the end of a US cable news show, the host invited viewers to respond to a poll on the show’s website that asked, “Do you support the new federal policy discussed during the show?” At the end of the show, the host reported that 28% responded “Yes,” and 70% responded “No.” Which of the following best explains why the results are unlikely to represent the sentiments of the population of The United States?

A) The percentages do not add up to 100%, so any possible conclusions from the poll are invalid.

B) Those who responded to the poll were not a random sample of the population of the United States.

C) There were not 50% “Yes” responses and 50% “No” responses.

D) The show did not allow viewers enough time to respond to the poll.

Steps-5

A psychologist designed and conducted a study to determine whether playing a certain educational game increases middle school students’ accuracy in adding fractions. For the study, the psychologist chose a random sample of 35 students from all of the students at one of the middle schools in a large city. The psychologist found that students who played the game showed significant improvement in accuracy when adding fractions. What is the largest group to which the results of the study can be generalized?

A) The 35 students in the sample.

B) All students at the school.

C) All middle school students in the city.

D) All students in the city.