Maths is scary! Help!

[misskatie90]

Hey this is a long shot.
Am doing a level 5 in social care and I need my maths qualification.
I am at a stand still with a question can anyone help.

In a survey of 200 people on transportation methods, 52 stated they drove, 82 stated they took the train, and 19 stated they walked. What is the proballity that a person selected at random would walk? Give your answer to three decimal places.

Any help would be great

Have you looked at gcse Bitesize? Much better questions and lots of clear examples there

These answers are not correct everyone's right though the question is so badly worded unfortunately that's the programme my tutor uses for maths

What is the official “correct” answer?

@PurpleDaisies

What is the official “correct” answer?

I don't know

How do you know the answer is wrong?

@PurpleDaisies

How do you know the answer is wrong?

I put it into the answer box and it comes back incorrect but won't give me the correct answer. So frustrating

That doesn’t mean the snared is wrong. Those programmes are often full of errors.

Is it just the hat question that it thinks is wrong?

Try putting “0” as the answer. Maybe it wants you to realise if you’re taking two hats from each style without replacement it’s impossible to get all red hats.

@PurpleDaisies

Try putting “0” as the answer. Maybe it wants you to realise if you’re taking two hats from each style without replacement it’s impossible to get all red hats.

That's also coming back incorrect

@PurpleDaisies

That doesn’t mean the snared is wrong. Those programmes are often full of errors.

Is it just the hat question that it thinks is wrong?

Yeah just the hat question. The programme is worded rubbish but it has never told me an answer was incorrect if it wasn't

The programme is worded rubbish but it has never told me an answer was incorrect if it wasn't.
You’ve had a better experience than other students then! None of those programmes are error free.
I’d contact your tutor.

Forgot, please come back and tell us what the answer is!

@FrankensteinIsTheMonster

Maybe it's easier to think of there being a hundred Sergeis who all have to answer the two questions. We know that on the first question, 3 out of 5 Sergeis will get it right, so 60 out of 100 Sergeis. The other 40 Sergeis got it wrong, so we can ignore them because they now can't get both of the answers right. Then the 60 Sergeis who got the first question right do the second question. 3 out of 5 of them get it right, which is 36 Sergeis.

So 36 out of our original 100 Sergeis will get two right answers — 36/100, 0.36, 36%, or 9/25.

Brilliant!

I wonder if it's a misprint for one from each style?