Is this sample biased or unbiased?
Kelsey wants to know what cookie flavor is most popular. She surveys every 5th person who walks into a grocery store.
Unbiased
What is the MODE of this dotplot?
10
How do we find
1. Range?
2. IQR?
Range= Max-min
IQR= 3rd quartile-1st quartile
Find the mean of the following data set
1,5,8,10,15,19,22,46
15.75
Define "biased" is terms of how we have used it this unit
An unfair sample that favors something
Write the population and sample from the scenario below
Paulette wants to know the average temperature across all states in the US. She measures the temperature of each state capital.
Population: States in US
Sample: State capitals (city)
Fill in the blank: There is a __________ overlap between the dot plots
Small
True or False: The median of the 2006 games is greater than the median of the 2010 games
FALSE
Find the mode and range of the following data set
1,1,1,1,2,2,2,3,4,6,7,9,14,12,15,16,18
Mode: 1
Range: 17 (18-1)
Describe sample and population
Population is general, sample is specific
Imagine you are conducting a survey to assess the satisfaction levels of residents in a city park. Create a fair, unbiased survey
*depends on asnwer*
Describe the SHAPE of the dot plot
Skewed left
Find the mean of Team A and the IQR of Team B
Team A MEAN: Cannot be determined
Team B IQR: 10 (60-50)
Find the median of the following data set
2,1,12,4,5,7,7,8,9,10,12
7
What words should we think/what are other words for...
Mean:
Median:
Mode:
(IN ORDER)
Average
Middle #
Most (occurring) #