You toss a coin and roll a number cube. Find P(tail and a six). HELP? I don't know what this means.
@satellite73
@ganeshie8
P( `tail` and `a six` ) is read as : Probability for getting a `tail` on coin AND getting `a six` on number cube
Do you know how to find the probability of getting a `tail` on coin ?
No, I do not
it means you get a tail on the coin and a six on the die
I was going to guess that the probability of getting a tails would be 1/2 because there's two sides? But I don't think that's right.
of course it is right!
That was a right guess!
Oh, really? yay:D
see if u can make a guess about getting `a six` on number cube
bet you know for the die too right? how many sides of a cube?
Well if there's six sides then..Wouldn't it be 1/6? Because there's only one side out of six that has a six on it?
Okay..so...Does that make the answer 1/12?
Looks good !
Alright :3 Thank you mucho for helping! I've got a few other questions I may need help with too haha.
yw:)
Alright..This one has way too many words for me to comprehend in mathematical terms xD So if you'd possibly be so polite as to walk me through this one too haha.
So total how many tiles are there in the bag ?
Umm. 36?
Oh would it become 21/36 times 15/36?
Exactly !
Okay..so then the answer would be.. 35/144?
oh my god I feel so smart xD Thank youuuu.
For this, would it become 5/6 multiplied by 3/6?
Because..there's six numbers on a dice..So that would mean there there are five other numbers that are above 2...And then for the second fraction, there's three odd numbers on a dice..? Is this correct?
are you really sure there are 5 other numbers above 2 ?
list them
Oh my god wait no there's 4..
Yes!
Alright..So..The answer..Would be 1/3??
I like how my brain pauses somehow transfer themselves to my typing without my meaning to haha.
Perfect!
Oh my gosshhhh. Yay :D
For this. would the answer be 28/121? Because there's four vowels in the word...So that'd be 4/11. Then there's 7 other letters that aren't vowels..So that'd be 7/11. So then those multiplied would be 28/121..am I right?
Careful, you're taking a card out and not putting it back in the bowl
Oh shoot I forgot xD
when you pick the card for first time, there are a total of 11 cards in the bowl but the second time, there are only 10 cards right ?
Yes..So would that make it 4/10 times 7/10?
Wait, wouldn't it become 3/10 and 6/10 actually?
first time you still have 11 cards so.. probability for picking a vowel the first time would still be 4/11
after picking an vowel, you will be left with only 10 cards in the bowl
out of which 7 cards are consonants so the probability for picking consonants would b 7/10
ohhh. So 4/11 and 7/10?
Yep!
So..14/55?
thats right!
Okay. So. My thoughts for this are that it would become 5/11 times 4/10. Because there's five oranges out of the 11 present, so there's five chances for him to get an orange. But then after he takes out his one fruit, it takes down the total to 10, and there are four apples, providing the girl with four chances to get an apple. And then the answer would become 2/11.
Looks good !
Join our real-time social learning platform and learn together with your friends!