Mean, median, mode, range, and outliers
Find the mean of the following set of data: 13, 23, 21, 20, 21, 24, 18
What is the mean is 20
Explain each step that you would use to find the mean absolute deviation of a data set.
What is 1.) Find the mean of your data set (add all numbers, divide by the amount of numbers in your data set). 2.) Use your quotient (mean) and subtract that number from each number in your data set (if any numbers become negative, take away the negative sign). 3.) You should have a new data set, now find the mean of your new data set (add the numbers and divide by the amount of numbers in your data set). 4.) Your quotient (mean) is your mean absolute deviation.
Make a box and whisker plot for the following data: 7, 1, 0, 4, 8, 3, 10
What is you should have points at the numbers: 0 (least value) 1 (lower quartile) 4 (median) 8 (upper quartile) 10 (greatest value) See example on board
Make a dot plot of the following data: Number of miles run: 8 3 5 6 7 8 5 5 3 6 10 7 5
See Google Slides
List the 3 types of unbiased sampling
What is simple, stratified and systematic
What is the mode: 10, 9, 4, 4, 8, 8, 8, 4, 7, 6, 11, 14, 27
What is 4 and 8
Find the mean absolute deviation of the following data set: 5, 6, 7, 4, 3
What is the MAD is: 1.2
Find the interquartile range for the data set: 12, 14, 11, 10, 9, 10, 9
What is the IQR = 3 - put the numbers in order from least to greatest - find the median - find the difference between the first quartile (9) and third quartile (12)
How do you find the Inner Quartile Range?
What is Q3 - Q1
Find a possible missing value in the set of data if the range is 20. 14, 8, 17, 21, ____, 11, 3, 13
What is 1 or 23
The number of points Maggie has scored in each of the first 5 games of the basketball season are 14, 17, 17, 13, and 34. What is the mean absolute deviation for the number of points for Maggie's first 5 games?
What is 6.
A solution used to kill bacteria is tested The solution kills the following percentages of bacteria in six trials: 85, 84, 87, 86, 90, 80 Use the data to make a box-and-whisker plot.
What is your box-and-whisker plot should have the following points: 80 (least value) 84 (lower quartile) 85.5 (median) 87 (upper quartile) 90 (greatest value)
Construct a dot plot for the following data: Number of Laps Run 2, 2, 5, 4, 2, 3, 6, 1, 0, 3, 3, 3, 2, 5
See Google Slides
John wanted to see who likes Taco Bell at this school. So, he asks every 3rd person who enters the building.
What is unbiased systematic
Find the Mean, Median AND Mode of the data set:
2.25, 1.75, 3, 4, 1.25, 2.25, 3, 2.5, 1.5, 3
Median: 2.375
Mode: 3
There are 7 animal shelters in the local area. The number of cats in each is 4, 6, 3, 7, 4, 5, and 20. What is the mean absolute deviation for the number of cats in shelters to the nearest tenth?
What is 3.7.
Find the interquartile range, round to the nearest tenth if necessary: 5, 2, 4, 7, 4, 4, 1
What is 3
How do you find the range of a box plot?
What is finding the difference between the minimum and the maximum
What type of sampling is this?
Rebecca wants to see if her outfit is cute, so she asks 6 of her closest friends.
What is biased, convenient
What is the definition of the term mode?
What is the value or values that occur the most often in a set of data.
Find the mean absolute deviation, round to the nearest tenth. 23, 37, 33, 39, 29, and 31
What is 4.3
Will you have to create a box plot on your test?
What is yes
What are the 5 numbers of a 5 number summary data set?
What is minimum, Q1, Q2, Q3, and maximum
What is the difference between convenient and voluntary biased sampling?
What is someone voluntarily completing the survey and it being easily accessible, convenient for the surveyor.