I did some practice FRQs and the probability FRQs from recent years are so much harder than the older years, I’m hoping they tone it down this year and just give us a table to work with 😭😭 EDIT: THEY GAVE US A TABLE but I’m pretty sure I got a 3/4 for that FRQ because I messed up on one part lol.
The probability of 2 goals in 5 games you messed up a few times by putting .18 for 1 goal scored instead of .34 and you made a calculator typo. Good video overall. Got me well prepared for my test.
yes but they don't provide 5 goals as an option so u can't do that. also did he make a mistake cause shouldn't it be (0.34 * 0.02) instead of 0.18 * 0.02 for 1 and 4 goals?
Good very goood …yet again when do we use which ? Random variables ?numerical variables, numerical values ??? Perhaps a slowing down of the delivey of the punch line might help as opposed to increasing speed of delivery of the punch line.
Hello! btw for the discrete random variable example the one involving the 2 games the probability of scoring one goal is 0.34 not 0.18 also on ur calc u wrote 0.111 not 0.11 for the last one. Just wanted to points these things out, overall phenomenal video!
You are correct on both. I did type 0.111 even when I said to check my work!!! And yes, in the first and second scenario of scouring 5 goals I used the probability if zero goals instead of 1 goal. My bad, need to fix. Thanks for pointing out!!!
prior to that problem there is a problem about individual ice cream containers each with a mean weight of 16 oz and a standard deviation of 0.05 oz. That is where the 0.05 comes from. There are 10 individual ice creams in each crate so for the total standard deviation we have to take the variance 0.05^2 for each individual ice cream multiplied by 10 and add the variance for the crate, 0.08^2.
That one can be a bit tricky! The idea is if we want the first success to be any time after the 3rd throw, it means the first 3 throws must ALL be failures. When is the first success then?? It doesn't matter as long as the first three all fail. That's the idea!
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anyone else studying last minute?!😀😀😀😀
Yup!🥲🥲
😻😻 apparently
Me. I don’t know anything about probability.
Yep right here
Hehe 🙋♀️
You explained this way better than my actual teacher ever could all year. Thank you so much
I did some practice FRQs and the probability FRQs from recent years are so much harder than the older years, I’m hoping they tone it down this year and just give us a table to work with 😭😭
EDIT: THEY GAVE US A TABLE but I’m pretty sure I got a 3/4 for that FRQ because I messed up on one part lol.
The probability of 2 goals in 5 games you messed up a few times by putting .18 for 1 goal scored instead of .34 and you made a calculator typo. Good video overall. Got me well prepared for my test.
Thanks for the feedback I will look into fixing those mistakes
could 5 goals in game 1 and 0 goals in game 2 and vice versa be another possible combination in the problem that you were doing at 23:14?
yes but they don't provide 5 goals as an option so u can't do that. also did he make a mistake cause shouldn't it be (0.34 * 0.02) instead of 0.18 * 0.02 for 1 and 4 goals?
@@derrickhuang1044 yeah you right
these videos are so good and saved me today
I dont really get the problem at the end about the crates
this is so helpful, thank you so much
Good very goood …yet again when do we use which ? Random variables ?numerical variables, numerical values ???
Perhaps a slowing down of the delivey of the punch line might help as opposed to increasing speed of delivery of the punch line.
I enjoyed this class in high school. I believe the teacher's name is Rachel Lindahl. She is cool.
THANK YOUUU!!!
is 22:33 a mistake? for 1 goal you wrote 0.18 which is the probability for 0 goals.
yeah, thanks for letting me know, need to fix that!
at 39:04 would you not divide the ice cream's variance by 10 instead of multiplying it?
You would divide if looking for the mean of a sample of 10, but here we are looking for the TOTAL weight of 10.
BLESS THANK YOU
t minus 3 hours till the test 😋😋
im so cooked
30 minutes everyone
Hello! btw for the discrete random variable example the one involving the 2 games the probability of scoring one goal is 0.34 not 0.18 also on ur calc u wrote 0.111 not 0.11 for the last one. Just wanted to points these things out, overall phenomenal video!
time is roughly at 23:30
You are correct on both. I did type 0.111 even when I said to check my work!!! And yes, in the first and second scenario of scouring 5 goals I used the probability if zero goals instead of 1 goal. My bad, need to fix. Thanks for pointing out!!!
@@mporinchak Np! Great video!!
Can someone explain how he got .05 on 38:44 ?
prior to that problem there is a problem about individual ice cream containers each with a mean weight of 16 oz and a standard deviation of 0.05 oz. That is where the 0.05 comes from. There are 10 individual ice creams in each crate so for the total standard deviation we have to take the variance 0.05^2 for each individual ice cream multiplied by 10 and add the variance for the crate, 0.08^2.
The second example problem of the geometric probabilities does not make sense to me
That one can be a bit tricky! The idea is if we want the first success to be any time after the 3rd throw, it means the first 3 throws must ALL be failures. When is the first success then?? It doesn't matter as long as the first three all fail. That's the idea!
You sound like Nick from New Girl.
studying last minute
Me
this is an awesome review video thank you