Show:
MMMR
Box & Whisker Plots
Name That Bias
Calculating Z-Scores
Finding Percentage
100
Find the mode: 2, 2, 2, 3, 4, 4, 6, 8
2
100
What are the 5 values that make up a box-and-whisker plot?
Min, Q1, Median, Q3, Max
100
A survey is sent out to 10,000 homes but only 40 respond.
What is Nonresponse Bias
100
Calculate the z-score: mean = 14 std dev = 2.4 x = 19
z = 2.083
100
What percent of values are within 1 standard deviation of the mean?
68%
200
Find the range: 101, 105, 100, 102, 107, 110, 111, 109, 125
What is 25
200
Create a box-and-whisker plot given the following information: Min: 12 Q1: 17 Med: 19 Q3: 24 Max: 30
Answer will be drawn on board
200
A survey included the question "Do you really want to have a boring prom, or would you rather have your fun senior project due that weekend?"
What is Leading Question Bias
200
Calculate the z-score for a student who received an 83 on a test, given the class average was 79 with a standard deviation of 5
z = 0.8
200
Find the percent of values that are below z = 1.20
88.49%
300
Find the median: 11, 13, 14, 16, 18, 20, 21, 25
17
300
What percentage of data lies within each section of a box-and-whisker plot? (A section being the area between two lines)
25%
300
A radio host asked her viewers if they should have people pump their own gas
What is Volunteer Bias
300
Find the individual score given the following information: z = -1.2 mean = 125 std dev = 10
x = 113
300
Find the percent of values that are above z = -1.35
What is 91.15%
400
Find the mean: 100, 102, 105, 107, 108, 110, 113, 125
What is 108.75
400
Create a box-and-whisker plot given the following data: 12, 13, 17, 19, 20, 22, 25, 26, 28, 30, 36
Min: 12 Q1: 17 Med: 22 Q3: 28 Max: 36 BONUS: Are there any outliers?
400
Mr. Reese sent out a survey to his sophomores asking them if the school should include another option in the cafeteria
Undercoverage Bias OR Convenience Sample
400
Find the individual score given the following information: Percentile Rank = 79.67 mean = 58 std dev = 2.25
x = 59.8675
400
Find the percent of values that are between z=0.60 and z=1.63
22.27%
500
Which is more influenced by outliers - mean or median?
Mean
500
Use the outlier test to determine if there are any outliers in the following dataset: 1, 4, 4, 5, 5, 5, 6, 6, 7, 7, 7, 8, 9, 13
1, 13 are both outliers
500
Mr. Reese asked students from all of his classes if they should be allowed to order from Uber eats for lunch.
Convenience Sample
500
If someone had a GPA in the top 10 percent, given the average GPA is 2.8 with a standard deviation of 0.54, what GPA did they earn?
What is 3.49
500
Find the percent of values that are between 84 and 89, given the mean is 88 and the standard deviation is 2.2
63.85%