Review of Intro to Statistics

In a poll of 7th graders at VMS, 85% of students indicated that they ride the bus to school.

What does the "85% of students that ride the bus" represent?

• the sample

• the population

• a sample statistic

• a population statistic

Tags

CCSS.HSS.IC.B.3

In a poll of 7th graders at VMS, 85% of students indicated that they ride the bus to school.

What do the "7th graders at VMS" represent?

• the sample

• the population

• a population statistic

• a sample statistic

Tags

CCSS.HSS.IC.B.3

A new movie theater in town is surveying residents to determine what their favorite genre of movie is. Which of the following best describes a random sample?

• They randomly select 75 high school students to survey

• They survey patrons on their way out of a Monday morning matinee as to what type of movie they just saw

• They call every household in the town and survey them

• They send a survey out to 500 randomly selected households from all over the town

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Vineland Public Schools is considering changing the uniform color to purple. Which of the following best describes a random sample?

• All of the elementary school girls in Vineland

• Half of the children under age 10 in Vineland

• 25 randomly selected teachers at VMS

• 300 students names are drawn from a hat with the name of every student in the district in it

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A cell phone company randomly selected 200 of its subscribers and asked them how many text messages they send per day. Of those surveyed, 150 send more than 5 texts per day. Based on the data, if the company has 4,000 subscribers, how many send more than 5 texts per day?

• 3,000

• 1,000

• 133

• 3,100

Tags

CCSS.7.SP.A.2

The dot plot shown represents the number of minutes it takes the children in Miss DePre's class to eat breakfast. What is the median number of minute?

• 5

• 6.5

• 6

• 7

Tags

CCSS.6.SP.B.5C

The number of hamburgers sold over the period of a week is shown below.

51, 35, 60, 36, 42, 48, 75

What is the mean number of burgers sold during the week? (Round to the nearest whole number)

• 36

• 58

• 50

• 49

Tags

CCSS.6.SP.B.5C

The mean absolute deviation of a set of data is 25. What conclusion can be drawn about the data?

• The data points are close to the mean

• The data points are far from the mean

• The data points are close to the median

• The data points are far from the median

Tags

CCSS.6.SP.B.5C

Determine the IQR of the data below:

27, 19, 33, 21, 35, 16, 45, 9, 26, 12

• 17

• 49

• 24

• 36

Tags

CCSS.6.SP.B.5C

The number of phone calls made each day by various people are shown below. What information best represents the data?

3, 7, 2, 9, 0, 5, 1

• IQR: 2, Q1: 7, Q3: 5

• IQR: 6, Q1: 1, Q3: 7

• IQR: 5, Q1: 2, Q3: 7

• IQR: 2, Q1: 1, Q3: 3

Tags

CCSS.6.SP.B.5C