week 3

Question 1

what is the mode?

Answer 1

the number that occurs most frequently in a get of numbers (when plotted on a graph this looks like a one humped camel)

Question 2

True or False

It is possible to have more than one mode?

Answer 2

True
This is called a bimodal distribution - if two modes (it looks like a two humped camel when plotted on a graph)

and if there are multiple modes then it is called multimodal distribution

Question 3

What is the Median?

Answer 3

it is the middlemost number in the set of numbers (NOT the average of all numbers)

If the data set contains an even set of numbers then you mud find the number in the middle of those two numbers

Question 4

formula for finding the median?

Answer 4

(N+1)/2 = the position of the median (when there is an odd number of observations this will be a whole number and when it is an even number of observations then the answer will be a decimal)

Question 5

formula for finding the mean?

Answer 5

mean = (sum of raw scores in a set of scores) / total number of scores in a set

Question 6

what is the formula for deviation

Answer 6

the number - the mean