Probability of Handedness and Gender

The video tutorial explains conditional probability using a contingency table. It covers calculating the probability of being male given right-handed, right-handed given male, and female given left-handed. The tutorial also discusses the independence of events, specifically whether being female and left-handed are independent events.

What is the purpose of a contingency table in this context?

• To list all possible outcomes of an event

• To organize data by gender and handedness

• To calculate the total number of people

• To determine the average age of participants

What is the total proportion of the sample that is female and right-handed?

• 0.55

• 0.45

• 0.35

• 0.25

What is the probability of being female and right-handed?

• 0.45

• 0.55

• 0.25

• 0.35

How do you calculate the probability of being male given right-handed?

• P(M and R) / P(R)

• P(R and M) / P(M)

• P(M) / P(R)

• P(R) / P(M)

What is the probability of being male given that the person is right-handed?

• 0.677

• 0.777

• 0.577

• 0.477

What is the probability of being right-handed in the sample?

• 0.86

• 0.76

• 0.66

• 0.56

What is the probability of being male and right-handed?

• 0.41

• 0.31

• 0.51

• 0.21

What is the probability of someone being right-handed given they are male?

• 0.637

• 0.837

• 0.537

• 0.737

How do you calculate the probability of being right-handed given male?

• P(M) / P(R)

• P(R and M) / P(M)

• P(M and R) / P(R)

• P(R) / P(M)

What is the total proportion of males in the sample?

• 0.49

• 0.59

• 0.39

• 0.29