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Finding Percentiles for a Normal Distribution
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Розмір відео:
- Опубліковано 5 жов 2019
- This video shows how to find the percentile for a normal distribution.
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god bless u sir. this video brought me back from sobbing over a goddamn math problem. i love you
Glad it helped. Good luck in your class.
Studying for my statistics mid term and this helped me so much. Thank you
You’re welcome. Good luck on your mid term.
@@crowsmathclass 🙏🏽
I am currently studying for my second midterm. Thanks a lot for the videos. You explained this way better than my professor does.
You’re welcome. Good luck on your midterm.
Missed one day of Statistics and I was completely lost. This video helped a LOT, big thanks!
You’re welcome. Glad it helped.
I was panicking about my upcoming stats exam but now I feel more confident after watching your video! Thank you, you're a life saver :)
You’re welcome. Glad it helped.
This video is exactly what I needed! So easy to follow. Thanks so much!
You’re welcome. Glad it helped.
I’m still confused
Same
Twins😍😍😍
Thank you SO MUCH! I was confused and your videos cleared this up for me! I can't tell you how much I appreciate it!
You’re welcome. Glad it helped.
Thank you so much Professor!!!! You truly made me love statistics!! Love from NYC!!
You’re welcome.
Omyghoshhhhhhh thanks for explaining you're the one here on youtube that solves for percentile thingy given only the sd and the mean that I understand, thank you so much for your effort!💕💕😍 Please keep teaching sir! Hands down to you sir 👐
You’re welcome. Glad it helped.
Really great video!this explained every question I had! Thank you 😇✌️
Thank you. Glad it helped.
thank you so much! You just saved my finals!
You’re welcome. Glad it helped.
Great Video!! Thank you for going to so much detail it was really helpful!
You’re welcome. Glad it helped.
Brilliant!!!! This was very helpful, God Bless Sir.
Thank you. Glad it helped.
I'm currently studying for my final exam in statistics and this video was everything I need and more. HaHa! thank you so much!
You’re welcome. Good luck on your final.
Thanks steve, you taught me more in 15 mins than my teacher has taught me in 2 weeks! ✨
You’re welcome. Glad it helped.
you are such a king for this video! All hail Steve Crow!
Thank you. Glad it helped.
this was so helpful. thank you so much!
You’re welcome. Glad it helped.
Big thanks from Kingdom of Jordan 🙏
You’re welcome.
Wow,I got what I want from this video.thanks
You’re welcome. Glad it helped.
Thank u, u saved me from suffering. New sub!!
Thank you.
I didn't know which number to use on the Z-table when it was between 2 values and not exact. Thanks for the help!
You’re welcome. Glad it helped.
Thank you so much for this video!
You’re welcome.
Thank you so much sir , it was really helpful.
You’re welcome. Glad it helped.
Thank you Mr.Crow
You’re welcome.
omg, finally I found the solution, thank you so much.
You’re welcome.
you saved my life sir thank you !!!!
You’re welcome. Glad it helped.
Thank you so much! This was very helpful!
You’re welcome. Glad it helped.
What is the (Z) for 84 percentile ??
This video has helped me so much, thank you.
You’re welcome. Glad it helped.
I loved the way you explained it. Thank you!
You’re welcome. Glad it helped.
Thank you very much Sir! 😊
You’re welcome.
I'm cramming cuz my exams is 4 hours away lol, thanks a lot
Thank you for saving my stats grade!!!
You’re welcome.
Thank you for such a nice explanation.
You’re welcome. Glad it helped.
Thank you so much
excuse me sir but there is a definite value for 0.25. it is located in -1.96. I was wondering whether this was a slight oversight in your end or there is another explanation regarding this as there are 2 possible places we can find the 25th percentile. The one in -1.96 and the one you chose
You're amazing.
Thank you.
Thanks Steve!
You’re welcome.
Hi Steve, I sure appreciate your time and expertise in statistical information and teaching. I am wondering if you could help me solve a problem. I received a test result for a chemical called 1-bromopropane.
The LLOC is 4.0
The 75th percentile is 11
The 95th percentile is 46
My level is at 72.
Would this be considered as high or not? Is there a way that I can calculate what percentile it is at based on the limited information that I have?
I’m having a similar issue
Thank you.
You’re welcome.
You cleared my z score doubt thanks
You’re welcome.
You’re welcome.
Sir why we choose 1.28 in 90th percentile instead of 1.29 coz there was already 90 its self then why 😢
Why do we look for negative z value in case of 25th percentile and positive z values for 97.5 and 95 percentile?
We are on the left side of zero. Those are negative z values.
Thank you 🙏
You’re welcome.
You are the best
Thank you. Glad it helped.
Ahh these things itch my brain.
Thank you
Thank you very helpful
You’re welcome.
youre my hero
Glad it helped.
is it possible to do this without the table?
You can use software. Excel or Google Sheets does a good job
awesmmmmm. any quick ways of figuring out my left from right? im using stat crunch and i dont know when i should use greater than or less than. thanks.
The problems usually say greater than or less than. Or they will say above or below.
Assume the random variable X is normally distributed with mean 50 and standard deviation 7. Find the 78th percentile.
I figured it out to be the percentile is
55.41 I had to guess at greater than or less than. Any advice?
how do you work out sigma and mean from only having values of area and Z value?!?
Do you also have the x values? If you do, just use z=(x-mean)/sigma for 2 different z and corresponding x values, and then just use a system of equations to solve for the mean and sigma.
Why do need to multiply by 5 ?
To solve for X
thanks sir!
You’re welcome.
Thanks 🙏
You’re welcome.
Thanks a lot
You’re welcome.
Is there a way to get the table on pdf?
I have not looked but I’m sure there is a pdf on the internet.
Thank you sir :)
You’re welcome.
Wawww that was 👍 great
Thank you.
Where is the table extracted from,,,, i want to solve a similar question
I think I scanned it from a book. You can also google z table and print one out.
Very helpful
Thank you. Glad it helped.
Hi, can you please drop the link of that z table?? huhuh great help!
The standard normal (Z) table I have here is really different from yours completely.
Yea. The one I’m using is more common. I don’t really care for the other one.
thanksss
You’re welcome.
Your accent is nice
Thank you.
Thanks
You’re welcome.
wouldn't it be -0.53?
I thought the answer in percentile is in the table?
You have a very strange accent, where are you from? Sounds very old western action movie esque.
Louisiana.
THANKCYOU
You’re welcome.
i love you
Glad it helped.
are you a cowboy
I know this is from three years ago but this made me laugh
😂😂😂
What if we don't have the chart?? How do we find it
You would have to use excel.
@@crowsmathclass I use R studio
How can I find it?
I have never used R. Sorry about that.
you can use the invnorm function on your calculator
South Park?
why u sound like ice cube!! damn
Ha. Never heard that before.
zeerow
Thank you but you have to much noise in your mic
You’re welcome.
lol you sound like Theo Von
👍
Yawa
D na nakakatuwa adsss nyu youtube
Thank you so much
You’re welcome.