Math

What are some of the uses of statistics and probability?

• To bake a cake

• To present facts in a definite form

• To build a house

• To fly a plane

What is one of the limitations of statistics?

• Deals with qualitative data

• Deals with individual measurements

• Results are true only in general

• Cannot be misused

What is the definition of 'Population' in statistics?

• A representative part of a population

• A list of the entire population from which a sample is to be selected

• The complete collection of individuals, objects or measurements

• Data that are obtained by counting

What is the main purpose of data presentation in statistics?

• To confuse the audience

• To facilitate statistical analysis

• To hide the data

• To complicate the information

What is the standard deviation used for?

• To collect data

• To organize data

• To measure the central tendency of data

• To summarize the amount by which every value within a dataset varies from the mean

What is the variance in statistics?

• A measure of the dispersion of data

• A measure of the spread of data

• A measure of the central tendency of data

• A measure of how tightly the values in the dataset are bunched around the mean value

What is the mathematical definition of probability?

• P(A) = n/N

• P(A) = 0

• P(A) = relative frequency of A

• P(A) = 1

What is the addition law for two events A and B?

• p(AB) = p(A)+p(B)

• p() = 0

• p(A)+p(A')=1

• p(S) =1

What is the probability of getting a head when tossing a fair coin?

• 1

• 1/4

• 1/2

• 1/3

What is the purpose of teaching probability and statistics in school curricula?

• To make students dislike math

• To confuse students

• To help in decision making in various fields

• To complicate the education system