4.02 Quiz Creating Probability Distributions

Question: Which probability distribution table represents the frequency table?

x f

• -

• 0 - 5

• 1 - 10

• 2 - 15

• 3 - 5

• 4 - 15

• Answer: x P

• ——-

• 0 - 0.1

• 1 - 0.2

• 2 - 0.3

• 3 - 0.1

• 4 - 0.3

• Question: Which probability distribution table represents the data shown in the histogram?

• Answer: Yellow - 0.2

• Red - 0.2

• Orange - 0.2

• Blue - 0.2

• Green - 0.2

• Question: In a medical study, the heights of a group of men were measured to the nearest inch. There were 120 men with heights of 60-64 inches, 280 with 65-69, 312 with 70-74, and 162 with 75-79.

• Which probability distribution table best reflects the data?

• Answer: 60-64: 0.137

• 65-69: 0.320

• 70-74: 0.357

• 75-79: 0.185

• Question: Why is the table not a probability distribution table?

• 0 - 0.25

• 1 - 0.45

• 2 - 0.0

• 3 - 0.35

• Answer: The sum of the probabilities is 1.05.

• Question: What is the value of n using the probability distribution table?

• Red - 1/3

• Blue - 1/8

• Gold - n

• Silver - 1/6

• Answer: 3/8