1.5 Data collection experiment

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Data collection experiment

Class Time:

Names:

Student learning outcomes

The student will demonstrate the systematic sampling technique.
The student will construct relative frequency tables.
The student will interpret results and their differences from different data groupings.

Movie survey

Ask five classmates from a different class how many movies they saw at the theater last month. Do not include rented movies.

Record the data.
In class, randomly pick one person. On the class list, mark that person’s name. Move down four names on the class list. Mark that person’s name. Continue doing this until you have marked 12 names. You may need to go back to the start of the list. For each marked name record the five data values. You now have a total of 60 data values.

For each name marked, record the data.

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Order the data

Complete the two relative frequency tables below using your class data.

Frequency of number of movies viewed
Number of Movies	Frequency	Relative Frequency	Cumulative Relative Frequency
0
1
2
3
4
5
6
7+

Frequency of number of movies viewed
Number of Movies	Frequency	Relative Frequency	Cumulative Relative Frequency
0–1
2–3
4–5
6–7+

Using the tables, find the percent of data that is at most two. Which table did you use and why?
Using the tables, find the percent of data that is at most three. Which table did you use and why?
Using the tables, find the percent of data that is more than two. Which table did you use and why?
Using the tables, find the percent of data that is more than three. Which table did you use and why?

Discussion questions

Is one of the tables “more correct” than the other? Why or why not?
In general, how could you group the data differently? Are there any advantages to either way of grouping the data?
Why did you switch between tables, if you did, when answering the question above?

Questions & Answers

calculate molarity of NaOH solution when 25.0ml of NaOH titrated with 27.2ml of 0.2m H2SO4

Gasin Reply

what's Thermochemistry

rhoda Reply

the study of the heat energy which is associated with chemical reactions

Kaddija

How was CH4 and o2 was able to produce (Co2)and (H2o

Edafe Reply

explain please

Victory

First twenty elements with their valences

Martine Reply

what is chemistry

asue Reply

what is atom

asue

what is the best way to define periodic table for jamb

Damilola Reply

what is the change of matter from one state to another

Elijah Reply

what is isolation of organic compounds

IKyernum Reply

what is atomic radius

ThankGod Reply

Read Chapter 6, section 5

Kareem

Atomic radius is the radius of the atom and is also called the orbital radius

Kareem

atomic radius is the distance between the nucleus of an atom and its valence shell

Amos

Read Chapter 6, section 5

paulino

Bohr's model of the theory atom

Ayom Reply

is there a question?

when a gas is compressed why it becomes hot?

ATOMIC

It has no oxygen then

Goldyei

read the chapter on thermochemistry...the sections on "PV" work and the First Law of Thermodynamics should help..

Which element react with water

Mukthar Reply

Mgo

Ibeh

an increase in the pressure of a gas results in the decrease of its

Valentina Reply

definition of the periodic table

Cosmos Reply

What is the lkenes

Da Reply

what were atoms composed of?

Moses Reply

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Source: OpenStax, Introductory statistics. OpenStax CNX. May 06, 2016 Download for free at http://legacy.cnx.org/content/col11562/1.18

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