Answer

Before

After

Probability

Fi

Fp

Total

Fi

Fp

Total

1) Is it healthy to sunbathe?

They do not know

12

44.4

31

15

55.6

28

0.252

Yes or No

10

66.7

19

5

33.3

13

0.430

2) Even on cloudy days, is it possible to get sunburnt?

They do not know

7

50.0

31

7

50.0

31

1.000

Yes or No

19

48.7

24

20

51.3

24

0.712

3) Can glass protect us from the sun’s rays?

They do not know

9

50.0

31

9

50.0

31

1.000

Yes or No

4

100.0

22

0

0.0

22

0.036

4) Even on days when the temperature is not so high, am I at risk of burning myself?

They do not know

9

56.3

31

7

43.7

31

0.562

Yes or No

20

47.6

22

22

52.4

24

0.927

5) In winter, is it possible to get sunburnt?

They do not know

13

50.0

31

13

50.0

30

0.912

Yes or No

11

47.8

18

12

52.2

17

0.556

6) What can we do to protect ourselves from the sun?

Wear sunscreen

9

40.9

31

13

59.1

31

0.288

Avoid sun exposure

4

66.7

31

2

33.3

31

0.390

Wear long clothes

0

0.0

31

1

100.0

31

0.313

All options

18

54.6

31

15

45.4

31

0.445

7) What is the riskiest time for sun exposure?

Between 10 am and 4 pm

25

58.1

31

18

41.9

30

0.077

Until 12 a.m. and after 6 p.m.

5

35.7

31

9

64.3

30

0.198

Between 8 a.m. and 6 p.m.

0

0.0

31

2

100.0

30

0.144

Before 9 a.m. and after 4 p.m.

1

50.0

31

1

50.0

30

0.981

8) What is the benefit of protecting yourself from the sun?

Not feeling thirsty

0

0.0

31

0

0.0

31

-

Avoid tanning too much

9

47.4

31

10

52.6

31

0.783