research methods: calculating % and graphical presentation of data

Question 1

how do you find percentages?

Answer 1

• start by finding what 1% is
• e.g. what is 6% of 31?
• find 1% by dividing 31 / 100 = .31
• now multiply it by 6 to find 6% e.g. .31 x 6 = 1.86
• 6% of 31 is 1.86

Question 2

what should a graph show?

Answer 2

• a short title
• x axis must be labelled (usually the iv)
• y axis must be labelled (usually the dv)

Question 3

what is a bar chart?

Answer 3

• use bars which do not touch and can be used for all types of data

Question 4

what are histograms?

Answer 4

• these use bars which touch and used with interval data only