biostats

Question 1

define a categorical variable

Answer 1

a finite amount of variables, each data point fitting one of these discrete categories. summarised by a number of each category. so 2/10 people like feet

Question 2

define continuous variable

Answer 2

described across a continuum of values and can take on any value, height and weight.
summarised by a mean and spread of data ( standard deviation)

Question 3

smaller variation means

Answer 3

a smaller standard distributions

Question 4

larger standard distribution

Answer 4

means larger variations in sampling

Question 5

you cant say what when it comes to 95% confidence innterval

Answer 5

You cant say anything to do with chance when it comes to confidence intervals.

Question 6

you are 95% what that the true what lies where

Answer 6

95% confident that the true mean lies within this range