- For the following, describe the type of sampling or bias [ /5K]
- Ontario is having an election. A poll wants to look at a demographic by looking at a sample from Ontario where they randomly select a region, then a City, then a region within the city and finally a certain block in that region
- I need to talk to 100 people out of the 2000 at the company. I will talk to every 20th person on the company directory
- I want to find information on who are being going to vote for. I can’t travel very far so I set up a table in front of Tim Hortons to ask people passing by.
- I want to find out which is the best singer today so I visit a Taylor Swift Concert and ask them their opinion
- I ask my students before a test, who has cheated before?
- The following is a list of scores for a recent data management test.
45, 55, 56, 56, 57, 59, 62, 65, 68, 68, 68, 69, 73, 76, 76, 79, 82, 82, 84, 90, 90, 90, 95. Find the following: [ /5A]
- Find the mean, median and mode
- A mark of 80 would be in what percentile?
- What value is the 80th percentile
- The following is a list of scores for a recent data management test.
45, 55, 56, 57, 59, 62, 65, 68, 69, 73, 76, 76, 79, 82, 82, 84, 90, 90, 95. Find the following: [ /5C]
- Find Q1, Q2, Q3 and the interquartile range
- Draw a box whisker plot of the data
- Navreen wants to calculate her mark before the exam. Knowledge and Application is worth 20% each, Communication and thinking is worth 15% each. [ /4T]
- What mark would she have if she got K= 80%, App= 85%, Comm = 90%, Think = 80%
- If she got 80 on her final and it is worth 30%, What is her final mark.
- LeBron has a career average of 27 points per game with a standard deviation of 2 points. Kobe averaged 27 points as well but his standard deviation was 5 points. Explain whos average you would have preferred. [ /1T]
