Maths unit 1

Stratified Sampling:

Divide (the amount by the population of the sample X how many needed in the sample).

Data-Handling Cycle:

1. Given hypothosis.

2. Say how your going to collect the data to investigate the hypothosis.

3. Say how you are going to represent or process the data.

4. say about the interpretation of the results and say about making a decision.

Estimating the mean from group frequency:

mean= sum of (F times…