Statistics 5.2 QUIZ

The collection of all possible outcomes of a random phenomenon is called

• the distribution.
• the probability.
• a census.
• the sample space.

Which of the following are true about probabilities?

• The probability of any event must be a number between 0 and 1.
• The sum of all the probabilities of all outcomes in the sample space must be equal to 1.
• Probability event is sum of probabilities of outcomes in sample space where event occurs.
• All three of the above.

If the knowledge that an event A has occurred implies that a second event B cannot occur, the events A and B are said to be

• the sample space.
• complementary.
• shared outcomes
• mutually exclusive

The probability model table reflects the color distribution of skittle candies. What is the probability of drawing a yellow candy?

• 0
• .2
• .3
• impossible to determine from the information given.

The probability model table reflects the color distribution of skittle candies. The probability that you do not draw a red candy is

• .7
• .2
• .8
• impossible to determine from the information given.

The probability model table reflects the color distribution of skittle candies. The probability that you draw either a brown or a green candy is

• .1
• .4
• .5
• .7

In a certain town, 60% of the households have a desktop computer, 30% have a laptop, and 20% have both. The proportion of households that have neither desktop computer or a laptop is: (HINT: Construct a two way table or venn diagram)

• 0%
• 80%
• 10%
• 30%

You ask a sample of 370 people, "Should there be an age limit on holding a government office?" The responses are in the table below. What is the probability that the person said "Yes"?

• .02
• .50
• .22
• .25

You ask a sample of 370 people, "Should there be an age limit on holding a government office?" The responses are in the table below. What is the probability that the person is a woman, and said “Yes?”

• .12
• .22
• .575
• .20

You ask a sample of 370 people, "Should there be an age limit on holding a government office?" The responses are in the table below. What is the probability that the person is a man, and said “No?”

• .12
• .28
• .575
• .20