M1 Statistics

A Quantitative Continuous Variable

• The eye color of 8 students

• The number of students enrolled in German class

• Level of Scholarity

• The birth weight of babies borned last month.

A market researcher surveys 85 people on their coffee-drinking habits. She wants to know whether people in the local region are willing to switch their regular drink to something new.

What is the sample?

• People in the local region

• Regular drink

• The marker researcher

• The 85 people

100 students from the Prepa TEC were surveyed by 2 doctors about their daily activities.

What is the sample?

• 100 students

• 2 doctors

• Students from the Prepa Tec

• Teachers from Prepa Tec

The median of

 $3,1,5,6,4,4,3,5$  

• 5

• 2

• 6.5

• 4

A qualitative ordinal variable

• weight

• gender

• scholoarity level

• eye color

The mean of

 $3,7,7,12,32,23$  

• 12

• 14

• 9.5

• 7

The mode of 

 $3,5,7,9,12,5$  

• 2

• 1

• 5

• no mode

Total frequency of Data set is

• 9

• 63

• 35

• 5

The frequency table shows data provided by a group of families that were survey about the number of children per house. 
How many households have 2 children?

• 2

• 13

• 10

• 30

The histogram shows the numbers of transactions made per day at this ATM (cajero), on the last days.

How many days the ATM registered between 80-90 transactions?

• 8

• 20

• 4

• 450