A
How many degrees are in an entire circle
Add percents when collecting data must add up to ______%
100%
What are the three types of sampling methods?
1) Systematic
2) Stratified
3) Simple Random
A _________ takes the responses of an entire population into account
Census
Random Sample is also known as an ___________
biased sample
Biased or Unbiased? Why?
Elizabeth collected responses form 50 students at a bus stop
Unbiased, completely random, no criteria given
Biased or Unbiased? Why?
Deklyn collected 10 responses at random from each grade. He only surveyed the boys.
Biased, he surveyed only boys
____________ sampling is a method in which every member of a population has an equal chance of being selected for the sample. In other words, you select members from a population without planning the order in advance.
Simple Random Sampling
List 2 ways on how you can conduct simple random sampling
1) Using lottery method
2) Using a random number table
3) Use a sampling frame
The ____________ method is a great choice when you want specific characteristics to be proportionally represented in the sample.
Stratified Random Sampling
The ________ method involves sampling based on pre-determined and regular intervals
Systematic Random Sampling
Name the appropriate sampling method and state why
A restraint owner would like to find out customers favourite desserts. He asked every 6th person to come into the restaurant.
Systematic Sampling
Name the appropriate sampling method and state why
A city would like to find out how many citizens have internet access. The plan to interview 1000 residents in the city
Simple random sampling
A university professor worked like to learn the number of nursing students who are employed within the first 3 months of graduation. She interviewed all the nursing students based on the percent of students in each nursing field.
Stratified Random Sampling
If there is 720 grams of toppings on a pizza and 180 grams are mushrooms, what angle of sector would it represent on a circle graph?
90 degrees
Using the following Data, find the mean, median and mode:
9, 3, 1, 8 , 3, 6
Mean: 5
Median: 4.5
Mode:3
If there is 712 grams of toppings on a pizza and 12 grams are hot peppers, what angle of sector would it represent on a circle graph?
6 OR (to be exact) 6.06 degrees
If there is 720 grams of toppings on a pizza and 36 grams are olives, what angle of sector would it represent on a circle graph?
18 degrees
Using the following Data, find the mean, median and mode:
1, 2, 3, 3, 4, 4, 4, 4, 5, 5, 6, 7
Mean: 4
Median: 4
Mode: 4
Define outlier and given an example of how it may impact the mean, median and mode in a data set
An outlier is an extreme or rare occurrence of a value.
Examples Vary: 1 Student got a 12% on their test while the rest of their peers scored between 80-90%
Misha recorder his expenses for 1 month in six different categories: Entertainment, food, clothing and transportation
Using the following Data, find the mean, median and mode, then state the outlier
80, 76, 80, 12, 87
Mean: 67
Median: 80
Mode: 80
Outlier: 12
Using the following Data, find the mean, median and mode, then state the outlier
1, 6, 9, 2, 5, 6, 6, 1, 21
1, 1, 2, 5, 6, 6, 6, 9, 21
Mean: 6.33
Median: 6
Mode:6
Outlier: 21
What is an infographic?