LEARNING INTENTION 7,8 & 10

Question 1

what s numerical data

Answer 1

data that can be expressed as numbers this is quantitative data
eg: height, weight and age

discreate and continuous data are examples of numerical data

Question 2

Categorical data

Answer 2

al data that can be expressed as groups or categories this is qualitative
eg: ethnicity, gender or types of animals

Question 3

column graphs are best for

Answer 3

categorical data

Question 4

what is needed for a column graph

Answer 4

-scale starts at zero
-gap between y axis and first column
-label each column or include key
-same gap between each column.

Question 5

what data is line graphs best for

Answer 5

numerical and quantitative data and tracking change overtime

Question 6

what do you include in a line graph

Answer 6

-plot data using x
-scale is even
-labelled variables and axis with units in brackets
-title

Question 7

how to draw a line of best fit

Answer 7

-they must not pass the first or last plot
-they d not start at 0 unless the data starts with 0
-draw through all dots

Question 8

how do you know if you experiment it valid

Answer 8

it is relevant to the experiment
it is reliable because it has been don’t more than once
it is accurate because other factors outside have been minimized