Summative Test in Statistics & Probability

Name

Grade & Section

• 11-Lalahon
• 11-Mayari
• 11-Dumangan
• 11-Apolaki

Which of the following terms is defined as a function that associates a numerical value to every outcome of a random experiment; and it is usually denoted by a capital letter X? (1 pt)

• Variable
• Random Variable
• Outcome
• Experiment

Which of the following terms is described as any characteristic or attribute of a population or sample under study? (1 pt)

• Variable
• Random Variable
• Outcome
• Experiment

Which of the following terminologies is described as a type of random variable that take on integral values only? (1 pt)

• Discrete
• Continuous
• Continouos
• Descrete

Which of the following terminologies is described as a type of random variable that can assume an infinite number of values that can take fractional values? (1 pt)

• Discrete
• Continuous
• Continouos
• Descrete

The number of dots that will appear when you roll a die is an example of what random variable? (1 pt)

• Discrete
• Continuous
• Continouos
• Descrete

Which of the following examples below is an example of discrete random variable? (1 pt)

• The weight of athletes in a boxing tournament
• Number of 10L cans of paint used in painting a wall
• The length of each cable wire in setting up a connection
• Speed of throwing a ball

There are 10 students who took an examination. If X denotes the number of students who passed the examination, what are the possible values of X? (1 pt)

• 1,2,3,…∞
• 0,1,2,3,…∞
• 1,2,3,4,5,6,7,8,9,10
• 0,1,2,3,4,5,6,7,8,9,10

Two dice are rolled at the same time. The first die shows a 4. Given that X is a random variable that represents the sum of the results shown by the two dice, what are the possible values of X? (1 pt)

• 1,2,3,4,5,6
• 4,5,6,7,8,9
• 6,7,8,9,10,11
• 5,6,7,8,9,10