Lesson 5

Question 1

Sample space is a collection of __________.

Answer 1

All possible outcomes

Question 2

The maximum probability of any event is ___

Answer 2

1

Question 3

A __________ event is any event that combines two or more simple events.

Answer 3

Compound

Question 4

State the formula for conditional probability

Answer 4

P(A|B) = P(A intersection B) / P(B)

Question 5

State the addition rule

Answer 5

P(A U B) = P(A) + P(B) - P(A inter B)

Question 6

What are mutually exclusive sets

Answer 6

A intersection B = null

Question 7

How does the addition rule change when sets are mutually exclusive

Answer 7

P(A U B) = P(A) + P(B)

Question 8

Multiplication rule?

Answer 8

P(A ∩ B) = P(A and B) = P(A) · P(B|A)

Question 9

If the outcome of one set does not impact other , they are called _______?

Answer 9

Independent

Question 10

False positives are type 2 error. True or false?

Answer 10

False

Question 11

Type 2 error is ________.

Answer 11

False negative

Question 12

What is a confusion matrix

Answer 12

2*2 matrix having all possible outcomes , when we are dealing with binary classifiers.