Presentation on theme: "https://www.youtube.com/watch?v=ul9MtMiIOnE Let’s hear from a world famous expert on questions."— Presentation transcript:
https://www.youtube.com/watch?v=ul9MtMiIOnE Let’s hear from a world famous expert on questions.
a sentence in an interrogative form, addressed to someone in order to get information in reply a problem for discussion or under discussion; a matter for investigation
A statistical question is a question that can be answered by collecting data, and different answers are expected. A non-statistical question is answered by a single response, and is not answered by collecting data.
A GOOD statistical question must have a specific topic, a population, variance or in other words several possible answers related to the data.
How old are you? How old are the students in your school?
What is the height of the tallest student in this class ? What are the heights of the students in your class?
TOPICS & POPULATION Pets Shoe size ANNOYING Siblings TV time Average Bedtime
Pair up with a partner Take out a sheet of paper Tear it in half Using a dark marker, write a statistical on one half & non-statistical question on the other half. Use tape to place each question in the right category on the board
Specific topic + population + Variability or several possible answers related to the data = A statistical question
1)Average shoe size 2) TV time 3) Siblings (list the total number of sisters/brothers) 4) Pets 5) Average bedtime
1)Form topic groups 2) Write your statistical question 3) Come up with a plan for collecting the data 4) Go around the room & collect data from each student
1) Find the MEAN Add all the numbers together and divide the SUM by the number of people you interviewed
1) Find the RANGE Subtract the highest number from the lowest number
1)What is the average (the mean) shoe size of a 6 grader? 2) What is the average (the mean) TV time of a 6 grader? 3) What is the average (the mean) total number of siblings of the 6 grader? 4) What is the total number of Pets an average (the mean) 6 grader has? 5) What is the average (the mean) bedtime of a 6 grader?