In a forest 20% of mushrooms are red, 50% brown and 30% white. 

A red mushroom is poisonous with a probability of 20%. 
A mushroom that is not red is poisonous with a probability of 5%.
What is the probability that a poisonous mushroom in the forest is red?

Imagine we are throwing a five-sided die 50 times.

 

On average, out of these 50 throws how many times would this five-sided die show an odd number (1, 3 or 5)?

Which one of the following dietary restrictions do you have? - Selected Choice

I have IBS, there are certain foods I have to avoid
Which one of the following dietary restrictions do you have? - Other - Text

Many thanks for your participation! 
Would you to receive the answers on carbon footprint questions after this study is over? - No thanks, I don't want to receive answers

Many thanks for your participation! 
Would you to receive the answers on carbon footprint questions after this study is over? - Yes, I do want receive answers

Enjoyed this survey, even though I am showing my ignorance!
Facinating subject matter, but the last few maths questions were tricky, very enjoyable though
For an important study it should have been placed where it would offer a better reward. Putting it on the 'Peanuts' part of the site gives the wrong message! I just fund out how little i know about climate change.
Good quality and product quality product price
I have a degree in Arachaeology and Geography incl a specialism in Climate Change over the last 2m years.
I have become anaphylactic to dairy products in the last year, both cows and goats milks/cheeses/creams etc.
If you have any comments or critique you would like to share with us, please write them into the box below.
In the kettle question, if you want to make a cup of tea you only boil the kettle once. Why boil 2 x half full?. Also, the answers should be a cupful is the least carbon foot print.
it was ok but curios to see how far of i was with the answers
it would have been great to see the correct answers to the %age questions near the end which I found interesting but very difficult
man, that's really confusing if you are rubbish at maths!!!
Maths is not my greatest thinking strength,
Sadly.
Really interesting and thought provoking
some of my answers re thinking hard are affected by my illness: I enjoy thinking but it is extremely difficult for me
Some of the multiple choice questions were too drawn out and monotonous.
sorry you have an unitelligent person here
These seem very hard questions that I think the majority of the population wouldn't have a clue about
this is not a survey but a test that i did not understand, i signed up for a survey to give my opinion, not for tests
This was a really interesting survey. I liked the maths puzzles at  the end.
Your questions on climate change were poorly phrased. The answers I gave were truthful, but would not be considered honest to the intentions of the test, hence the test is in error.