Statistics and Probability (ONLINE EXAM)

What is measurable random variable?

• Discrete variable

• Continuous variable

• Sample space

• Random variable

Which of the following is the best example of discrete random variable?

• No. of siblings of each students

• Determining the speed of the car

• Temperature of the oil while frying

• Measuring the heights of the students

Which of the following best describe a continuous random variable?

• All the students listed in a master list

• Students who failed statistics this semester

• Number of babies born each year

• The minutes of late

Which of the following is an activity in which the results cannot be predicted with certainty?

• Experiment

• Trials

• Statistics

• Event

Which of the following consists of the values a random variable can assume and the corresponding probabilities of the values?

• Event

• Discrete Probability Distribution

• Sample space

• Discrete Random Variable

How many possible outcomes are there?

• 46

• 36

• 55

• 65

What is the P(x) if x = 1?

• 14 / 55

• 7 / 55

• 9 / 55

• 12 / 55

What is P(x = 2)?

• 0.2545

• 0.1636

• 0.2182

• 0.1454

What is P(x = 9)?

• 0.2545

• 0.1636

• 0.2182

• 0.1454

What P(x > 3)?

• 0.4363

• 0.1454

• 0.3091

• 0.2909