Week 11

Question 1

what is descriptive statistics

Answer 1

methods for simplyfiying and summurasing data

Question 2

what is inferential statistics

Answer 2

METHODS FOR USING SAMPLE DATA TO MAKE GENERAL CONCLUSIONS

Question 3

what is centeral tendancy, what are the types

Answer 3

measures the centre of a distribution.

mean, median, mode

Question 4

when is the mean not appropriate

Answer 4

for skewed data with a nominal scale

Question 5

what does it mean when veriability is small. how can this be measured

Answer 5

when all of the results are clustered together.

- range and standard deviation