quantitative ability 3

Question 1

central tendency

Answer 1

a measure of the “middle” of a set or sample of numbers

Question 2

mean

Answer 2

the average of a set or sample of numbers (or terms)

Question 3

median

Answer 3

depending on the number of terms in a set or sample, this can be the middle number (for a set with an odd number of numbers) or the average of the two middle numbers (for a set with an even number of numbers)

Question 4

mode

Answer 4

the most frequent term in a set or sample of numbers

Question 5

variance

Answer 5

this measures how much the square of the difference of the data and the mean is

Question 6

standard deviation

Answer 6

the positive square root of the variance

Question 7

experiment

Answer 7

a situatin involving chance or probability that leads to results called outcomes

Question 8

outcome

Answer 8

the result of a single trial of an experiment

Question 9

event

Answer 9

a set of one or more outcomes of an experiment

Question 10

elementary event

Answer 10

the event which is a set consisting of one outcome

Question 11

probability

Answer 11

the measure of how likely an event is