Descriptive statistics

Question 1

What is descriptive statistics?

Answer 1

Tools used to summaries statistical data, helps managers analyze significance to aid decision making

Question 2

What are bar charts?

Answer 2

Visual rep of categorical data in heights of the bar which shows value of quantity measured, gives visual impact to data to allow for comparison in data

Question 3

What are pie charts?

Answer 3

Splits data into slices in a circle to represent numerical proportions of the data, need to work out angle fraction of data then multiple by 360 degrees which is angle

Question 4

What are infographics?

Answer 4

Visual tool to show information through combination of texts, images and graphics. Displays data and information in an engaging way

Question 5

What are quartiles?

Answer 5

Divides data into 4 parts, enables managers to spread data. Would be extension of medium average to support decision making.

Question 6

What is interquartile range?

Answer 6

Shows spread in a data by calculating difference in first and 3rd quartile, shows middle spread of data.

Question 7

What is standard deivation?

Answer 7

Statistical measure of dispersion of values in a set of data around its mean, purpose is to show whether small or large spread of results.