I might be late but in any stats class I've taken, our prof gives us the Z score table (Table A). if you're doing hw at home just google z score table. So for first example (z=1.67) the y axis is the z score's ones and tenths place (1.6 in first example) and the x axis is the hundredths place (.07 in first example). when you find the intersection of the two it gives you the percentage that z score falls into (.9525). no idea how people do this without already having the table though
Thank you for your explanation of Normal Distribution. Especially the conversion of the percentage for the application of the Z score. You really know what you are talking about and you make it easy for a layman to understand. Thank you for your thoughtfulness.
From the 1.67 you need to use your positive (right) Z table to look up that number on the chart and find the corresponding value. When you find 1.6 on the left (vertical) side of the chart, then move to the right until you reach 0.07 (horizontal) value of the chart. The answer will be 0.9525. You should have gotten a positive and negative Z-table charts to solve these problems. They help you find the percentage using the Z.
@@lyricg19336 but why did you use 0.07? Update: never mind I figured it out. Basically the first 2 values of the decimal (e.g. 1.67 -> 1.6 is the value on the left of the z table, the third value: 1.67 -> 0.07 is the top value. Just match them and find it. Another example: 0.48 - first two digits 0.4 are on the left side, and the third digit 0.08 is the top number). The video did not mention any of this stuff and expects you to know which is a bit poor in terms of teaching. You can just search up the z table to find the values.
I will answer for future people because not even websites explain it. So on a standard Normal distribution table. You have all your values and exactly at 0.84 the value is 0.7995 which when rounded up is 0.80 which is 80% Soooo in decimal form 80% is 0.80 and the closest thing to that is 0.7995 which is the value that belongs to 0.84 hope this helps!
Don’t have to see the area of beyond c This question is asking between 38 and 58 instead of above or less . Only look at area of mean and z is okay I am wondering if you really know how to do it .... or you just pretend that you are an expert or teacher of this subject 😂. If you make it wrong, others learn wrong....
Thank you. But how do we get the table
I might be late but in any stats class I've taken, our prof gives us the Z score table (Table A). if you're doing hw at home just google z score table. So for first example (z=1.67) the y axis is the z score's ones and tenths place (1.6 in first example) and the x axis is the hundredths place (.07 in first example). when you find the intersection of the two it gives you the percentage that z score falls into (.9525). no idea how people do this without already having the table though
Where is he getting the .84 or whatever from?
Can sum1 explain where the .9525 came from??
Use the Normal distribution Table to read the value for 1.67
Z table
@winniez yallah3615 it's the z table
what table are you referring to?
That was my question
Thank you for your explanation of Normal Distribution. Especially the conversion of the percentage for the application of the Z score. You really know what you are talking about and you make it easy for a layman to understand. Thank you for your thoughtfulness.
why would i go to class when i have a maestro right here on youtube, bless you heart and eveyrones trying not to fail on their exams
Where's the table?
Can you help with the numbers you got at 4:45 as .9987 and .3707? How did you got that number?
How did you get .84 you did not explain that?
.9987 and.3707 just magic poofed onto the page. Show the math please? How does 3=.9987 and. -.33 =.3707
SAME
7:35 how did you get .84
how found .84?
this was a great video until you completely failed to explain how you got to .9525
From the 1.67 you need to use your positive (right) Z table to look up that number on the chart and find the corresponding value.
When you find 1.6 on the left (vertical) side of the chart, then move to the right until you reach 0.07 (horizontal) value of the chart. The answer will be 0.9525.
You should have gotten a positive and negative Z-table charts to solve these problems. They help you find the percentage using the Z.
@@lyricg19336 How do I know which number from the right to use ?
@@lyricg19336 but why did you use 0.07?
Update: never mind I figured it out. Basically the first 2 values of the decimal (e.g. 1.67 -> 1.6 is the value on the left of the z table, the third value: 1.67 -> 0.07 is the top value. Just match them and find it. Another example: 0.48 - first two digits 0.4 are on the left side, and the third digit 0.08 is the top number). The video did not mention any of this stuff and expects you to know which is a bit poor in terms of teaching. You can just search up the z table to find the values.
This made no sense after you got 95.25 💀
Thank you so much, I needed this for AP Statistics
Its sad when a random dude explains it better then my math teacher
omg thank god i found this this is the only thing i've found that actually explains it.
what if you dont have a table??
i think most classes are required to give you a table, if not then you can easily look it up online.
you are my actual saviour i hope you have an amazing life god bless :'))
THANK YOU
YOU ARE MY HERO AAA
Where is that table that you keep mentioning?
How do we see that percentage without calculations
How did you get the .84.
I will answer for future people because not even websites explain it. So on a standard Normal distribution table. You have all your values and exactly at 0.84 the value is 0.7995 which when rounded up is 0.80 which is 80% Soooo in decimal form 80% is 0.80 and the closest thing to that is 0.7995 which is the value that belongs to 0.84 hope this helps!
@@Buushmasta Thank you! This helped me a lot
@@timi3554 glad I could help!
@@Buushmasta thank you
@@Buushmasta thank you!
How did u get the z=.84?
I too want to know this, still i m confused if someone explain i really thankful to him/her
exactly the same question
he has a table that isn't shown in the video.
is there a way to do this without the table
Thank you so much I was confused on this type of question on my homework @2:41 !🙌🏽👏
Homie came in clutch🙏🙏
lol how did you get .9525 this just waste my time
Lol
You have to use the z score normal distribution table in order to help find your percentage, it should be online and you can save it
I got it. But how can I know what should I get from itM
i dont understand it :
This helped a lot. Thanks! 🔥
If z=2 how could find on table
is .84 estimated how did you get it
Which table bro😢
Thank you so much, you're a life saver!
9:30 it can't equal right? The area of a line is 0.
dude how do you get .84 hahah
Wrong!!! Tell other ppl that your answer is wrong .... plz don’t learn it ....
Don’t have to see the area of beyond c
This question is asking between 38 and 58 instead of above or less .
Only look at area of mean and z is okay
I am wondering if you really know how to do it .... or you just pretend that you are an expert or teacher of this subject 😂.
If you make it wrong, others learn wrong....
Thank you
You teach it wrong
Z1: 3 , p(z) is 49.87%
Z2: -0.33 , p(z) is 12.93%
49.87-12.93%=36.94 %
How dare you teach ppl
?
How did you get there?
where's the table?