Who is more likely to be colorblind?

men
women
sailors
everyone with the same probability
It is much less likely for a woman to be red-­green col­or­blind than a man, since this common type of color blind­ness is caused by a re­ces­sive gene in the X chro­mo­some. For a woman, both of her X chro­mo­somes would have to be af­fect­ed. A man only has one X chro­mo­some, so he is more likely to be col­or-blind.

Answers distribution

men
women
sailors
everyone with the same probability
answers
flagSwitzerland
100%
0%
0%
0%
10
flagRepublic of Ireland
93%
0%
0%
6%
45
flagItaly
91%
0%
0%
8%
24
flagLithuania
87%
6%
6%
0%
16
flagUU
85%
3%
0%
10%
28
flagAustralia
84%
7%
7%
0%
13
flagPoland
81%
2%
2%
12%
10556
flagthe Philippines
80%
6%
6%
6%
15
flagGermany
79%
0%
1%
18%
135
flagthe Netherlands
77%
5%
0%
13%
36
flagthe United Kingdom
76%
3%
2%
15%
249
flagUkraine
75%
6%
6%
12%
16
flagFrance
72%
5%
0%
22%
18
flagthe United States
71%
3%
3%
20%
331
flagNorway
64%
7%
3%
25%
28
flagSweden
64%
0%
7%
28%
14
flagCanada
62%
5%
5%
22%
35
flagIndia
47%
7%
17%
26%
99
flagSouth Africa
40%
20%
20%
20%
10

Gender

men78%
women85%
men
78%
85%
women
3%
2%
sailors
4%
1%
everyone with the same probability
13%
11%

Language versions

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Who is more likely to be colorblind?
682
64%

Details

Author: Mike Stanaway
Illustration: Christian Heilmann
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