3.4 Histrograms

Question 1

How can grouped continous data be represented ?

Answer 1

» In a histrogram

Question 2

How can you calculate the height of each bar?

Answer 2

» Area of bar = k x frequency

Question 3

What is the formula to calcuate frequency density?

Answer 3

» Frequency/class width

Question 4

How can you make a frequency polygon?

Answer 4

» Joining the middle of the top of each bar in a histrogram