How To - Do a Stratified Sample (1)

[@jacquilline]

YOu have made my life very easy to select the sample i needed for my research

[@camiapadz]

Thank you so much..i have search ao many videos related to this topic, but only you made it so clear..

[@wiskamonday8623]

Please how do i solve this
A firm which has 4Dept A, B, C and D with the staff strength of 100,120,80 and 200 respectively, decide to train 50 of their staff. Using the appropriate sampling technique, show the appropriate number of staff that will be selected for the training

[@engr.saddamhussain350]

A warm hug to you; you have solved my problem

[@TheJackOfAllTradez1]

I wish you or "Maths247" were my stats professor. You both are really good at teaching.

[@enashnush126]

what I will do If I got the number of divided (population/sample size)=57/20=2.85 ,,so HOW CAN I do?? should I divided the same number or normalize that number to 3?? ,,I have two grope 37 ,and 20 instances???

[@mansoorahmed9696]

very well explained .... made life easy :) Thanks alot !

[@cadyferrer]

what do you do when stuff like this is on a non-calculator paper???

[@ashakidoredr.latinamerican1082]

Hi. Thank you for your presentation . What if I need to also account for gender? Do I divide the yr group into male and female first?

[@sophanpheng6580]

This is very helpful , easy to understand I like it

[@aliaabdulrahman720]

Thanks for the explanation. Just a little remark: the word strata is the plural form of stratum.

[@sirnylemillena1370]

What's the percent

[@akashketheeswaran9695]

This was very helpful. Thank you very much maths520. :)

[@aitzazafzal5086]

u solve my problem. Thank you !

[@navidfrough]

easier way would be - YEAR GROUP/TOTAL POPULATION X SAMPLE SIZE!
E.G. 173/840 = 0.20595 x 70 = 14.41

[@pankajstatisticssscpaper3611]

thanks

[@loinelinganay1]

nice...

[@ZuwyFPS]

Thank