Part 4 ยท Interactive
๐ŸŽฏ INTERACTIVE

Find the biased wheel

1,000 spins. Expected frequency = 1000/37 ~ 27. Which numbers look suspicious?

Number Frequency
0 25
1 29
2 23
3 26
4 31
5 28
6 24
7 27
8 39
9 30
10 22
11 26
12 28
Number Frequency
13 28
14 26
15 30
16 41
17 22
18 25
19 16
20 29
21 27
22 24
23 32
24 17
25 27
Number Frequency
26 24
27 42
28 31
29 26
30 28
31 24
32 44
33 26
34 23
35 29
36 25
Study the table. Which numbers stand out? High: 8 (39), 16 (41), 27 (42), 32 (44)   Low: 19 (16), 24 (17) On the real wheel, numbers 8, 16, 27, and 32 were next to each other. That means one zone of the wheel was biased.

โ†“ highlight anomalies โ†“ explanation