Random 1
What does "bias" mean?
not everybody was given an equal or fair opportunity to participate or have their opinion heard
You want to know the most popular sport within your school. You ask the intermediate volleyball team.
Is this biased or unbiased?
Biased. They will likely say volleyball.
This graph uses pictures to display data
Pictograph
Ms. Legere uses a spinner wheel with each person's name on it to decide who gets to eat their lunch first.
What type of sample is this?
Random Sample
quantitative data involves data based off of numbers.
True or False?
True
which of the following is not a necessary component of a line graph?
title, plots (dots and lines), X and Y axis, colour, scale, categories
colour
You are trying to decide what your friends would like to do at your birthday party. You ask only your best friend.
Is this biased or unbiased?
Biased. Other friends might have different ideas they didn't get to share.
This graph uses bars to display data
Bar Graph
Jaylee asks every 4th person that walks into our classroom if they would like to skip working and use iPads all day instead.
What type of sample is this?
Systematic Sample
Surveying the class on their favourite subject is an example of quantitative data.
True or False?
False. That would be qualitative data.
what type of sample gathers data from every nth participant?
systematic random sample
You are interested in starting your own lawn mowing business. You want to ask around your neighbourhood to see if people would be interested in hiring you. You knock on the door of only the houses who have grass in their front yard.
Is this biased or unbiased?
Unbiased. You cannot mow a lawn that does not exist, so asking only people with grass is not taking away an opportunity from people who do not have grass.
This graph uses plots and lines to display data
Line Graph
All of your names are included in the box that I pull from every morning for Secret Student.
What type of sample is this?
Random Sample
Give me an example of a biased sample to determine which hockey team is the best in the NHL
a specific team/coach/fan that would favourite one team over any others
what is a common purpose for using a graph?
it displays information in one easy to understand spot so you don't have to read through paragraphs and make sense of it yourself.
The teacher decides the magic piece of trash at the end of the day after it has already been picked up by her favourite student.
Is this biased or unbiased?
Biased. Everybody in the class did not have a fair chance of winning the magic piece of trash if it was chosen after somebody already picked it up.
Also, I don't pick favourites I love you all equally.
This graph can have multiple sets of data displayed in one graph by using different colours
Both the Bar Graph and Line Graph can do this
Ms. Legere is looking for a new hair product to make her hair super curly. She splits the school up by hair type (curly and straight) and then randomly chooses 5 people from the curly hair group to ask them about the products they use.
What type of sample is this?
Stratified Random Sample
what type of sample splits one large group into smaller groups based on similarities or characteristics
stratified random sample
Measuring how much snow fell over the weekend would be an example of which:
qualitative data OR quantitative data
quantitative data
The city of Grand Forks is trying to decide if they should eliminate the 4 day school week and bring back school on Fridays. They create a TikTok asking people to comment if they disagree and would like to keep the current schedule.
Is this biased or unbiased?
Biased. Not everybody who would be affected by this change has a phone or access to the internet, or a TikTok account to participate in the survey.
List all 6 components of a bar graph
1. title
2. X and Y axis
3. labels
4. categories
5. scale
6. plotted data (bars)
Jitterz is feeling generous and gives out one free coffee to their 100th customer every morning.
What type of sample is this?
Systematic Random Sample
Give me an example of an unbiased sample to determine which dog is the best breed for loyalty
a veterinarian, a professional dog trainer, an employee at a dog kennel, anybody who has experience working with multiple different breeds of dogs in a variety of settings/circumstances