handling data

Question 1

mean

Answer 1

total of all values / total no.of values

Question 2

mode

Answer 2

the value that occurs the most

Question 3

median (not quartile range)

Answer 3

list the no.s in chronoligical order and then find the middle no

Question 4

range

Answer 4

largest no .- smallest no.

Question 5

lower quartile range

Answer 5

0.25(n+1)

Question 6

median (quartile range)

Answer 6

0.5(n+1)

Question 7

upper quartile range

Answer 7

0.75(n+1)

Question 8

Histograms - frequency table formula

Answer 8

frequency density = frequency /width of group

Question 9

experimental probability

Answer 9

experimental probability is when you go and find out the probability of something by doing it.

Question 10

theoretical probability

Answer 10

theoretical probability is when u find out the probability of something based on theory

Question 11

independant events

Answer 11

independant events are two or more events that can happen at the same time because they dont effect ech other

Question 12

mutaually exclusive events

Answer 12

mutually exclusive events are events that cannot happen at the same time because they effect each other