Statistics

Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

• thirty students who are often tardy
• thirty students who are rarely tardy
• thirty of her friends
• thirty randomly selected students from her school

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

The entire group studied is called the

• sample
• population

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

The entire group studied is called the

• sample
• population

The part of the population being studied is called the

• population
• sample
• random

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

The part of the population being studied is called the

• population
• sample
• random

A U.S. senator from Maine wants to find out the opinion of the voters in his state on issues concerning education.  The office of the senator passes out surveys on ten street corners in the five major cities in the state of Maine.  Is this random?

• Yes
• No

Tags

CCSS.7.SP.A.1

Leslie surveyed the 9 youngest students in the elementary school.  Is this sample of the students in the school likely to be representative of all the students in the school?

• yes
• no

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

What is the highest score in the class?

• 88%
• 100%
• 13
• 98%

Tags

CCSS.4.MD.B.4

How many students received a score of 94%? 

• 94
• 4
• 1
• 2

Tags

CCSS.4.MD.B.4

How many students received a score in the 80's?

• 2
• 10
• 14
• 27

Tags

CCSS.4.MD.B.4