Bias/Unbiased
A city government conducts a survey about public transportation satisfaction by selecting households from one neighborhood to participate.
Biased because They are not including all the neighborhoods their only including one neighborhood.
Find the MAD: 74,63,95,23,46,24,26,28,64,63
21.2
Find the Mean of: 10,18,30,22,58
27.6
Whats the median: 34,11,54,1,77
34
What the mode: 12,18,29,18,11
18
A teacher asks only the students who scored above 90% on the last math test to participate in a survey about favorite subjects. Is it biased or unbiased explain.
Biased, Because she only asked the kids with 90% not any kids with a lower score.
Find the MAD: 34,97,65,65,2,15,19,54,87,15
28.3
Find the Mean of: 15,66,21,22,67
38.2
Whats the median: 35,38,25,87,12
35
Whats the mode:46,94,1,19,1
1
A fast-food restaurant conducts a survey about favorite menu items by asking every 5th customer in line. Is it Biased or Unbiased explain why.
Unbiased, Because it could be anyone that is fifth in the line.
Find the MAD:32,83,25,49,86,45,92,74,65,10
23.9
Find the Mean of: 23,36,62,12,71
40.8
Whats the median: 65,78,91,34,64
65
Whats the mode: 49,84,75,66,84
84
A school newspaper conducts a survey about student opinions on cafeteria food by randomly selecting students from different grade levels to participate. Is it Biased or unbiased explain why. Is it Biased or Unbiased explain why.
Unbiased, Because It includes everyone so it is fair chances you get picked.
Find the MAD:42,46,98,53,98,73,91,25,74,35
23.3
Find the Mean of: 42,85,35,57,97
63.2
Whats the median: 25,87,9,4,0
9
Whats the mode:11,2,8,9,2
2
A TV show conducts a poll on social media asking viewers to vote for their favorite character. However, they only promote the poll on accounts associated with one particular character. Is it Biased or Unbiased explain why.
Biased, Because it is only on associated with on particular character.
Find the MAD: 64,28,45,93,99,35,10,16,61,56
23.9
Find the mean of: 78,8,67,46,97
59.2
Whats the median: 25,85,45,95
65
Whats the mode: 25,27,27,89,26,94,67,89,32,89
89