Probability and statisitics

Question 1

what does U mean in venn diagramic terms g?

Answer 1

Nah g means union doesn’t it or in real gangsta term its ‘or’ means like the whole venn diagram rlly like in a or in b you get I. well if your giles you wont bcz your mentally challenged.

Question 2

What does n (that’s supposed to be and upside down U) in venn diagramic terms

Answer 2

Means intersect or ‘and’ which means both (when it isn’t talking about a’ or b’ which is when its and)

Question 3

When does the dash mean in venn diagramic terms (a’)

Answer 3

complement or not

Question 4

How to work out the mean from a frequency table

Answer 4

total number of values in the first column/total frequency

Question 5

What is the equation for working out frequency density?

Answer 5

frequency/class width

Question 6

How do you work out frequency from a histogram?

Answer 6

freq. density x class width

Question 7

What does the tallest column in a frequency diagram represent?

Answer 7

The mode

Question 8

How do you work out the median from a histogram?

Answer 8

Find the location by doing (total frequency + 1) / 2 and then count along to that value

Question 9

When working out probability, what does it mean when it says ‘and’ or ‘or’ in the question (a coin AND die are flipped)

Answer 9

and= means you need to multiply the probabilities of the two events

or= means you need to add the probabilities of the two events

Question 10

What does p(A’) mean?

Answer 10

probability of getting anything but A