Stratified Sampling Maths Gcse
Gcse mathematics stratified sampling questions appear on many exam papers and you can download the questions here.
Stratified sampling maths gcse. Typically for gcse higher and statistics. If the groups are of different sizes the number of items selected from each group will be proportional to. Each student studies one of greek or spanish or german or french. You must show your working.
Use a stratified sampling method to calculate the number of staff from each job type that should be asked to complete the survey. The corbettmaths textbook exercise on stratified sampling. Fabine wants to take a stratified sample of the visitors at the convention. Circle true or false for each of the following statements.
She chooses a sample size of 80. September 5 2019 september 5 2019 corbettmaths. This video explains stratified sampling. Stratified sampling is used to select a sample that is representative of different groups.
First we need to establish how many people were at the convention. Stratified sampling stratified sampling is used to select a sample that is representative of different groups. If the groups are of different sizes the number of items selected from each group. Stratified sampling practice questions click here for questions.
Videos worksheets 5 a day and much more. The main things to remember when working with gcse mathematics stratified sampling questions are. Adding up the numbers we get text total population 132 678 543 289 108 1 750. The table shows the number of students who study each of these languages.
4 marks step 1. In a stratified sample the proportion of each group is the same as the proportion in the whole population. A school has 650 students. Click here for answers.
They can be a little challenging and please do practice all of the problems.