The Uniform Distribution Quiz

The square footage data for the 28 homes is described by which distribution notation?

• X ~ U(1.5, 4.5)
• X ~ U(0.5, 9.5)
• X ~ U(0, 12)
• X ~ U(1.5, 4.0)

For the 28-home square footage data, what is the sample mean?

• 0.8302
• 3.60
• 2.50
• 4.50

For the 28-home square footage data, what is the sample standard deviation?

• 0.8302
• 1.50
• 2.50
• 4.50

In the distribution X ~ U(0, 12), what is the highest value that x can take?

• 12
• 0
• 9.5
• 4

The age of cars in the staff parking lot is uniformly distributed from what lowest age?

• 1.5 years
• 6 years
• 0.5 years
• 0 years

How many homes are described in the square footage data set?

• 14
• 12
• 28
• 9

For the car age problem, part b asks to identify the lowest value for which variable?

• x
• P
• k
• y

In the car age exercises, what conditional probability is asked to be found?

• P(x > 2)
• P(x < 4 | x < 7.5)
• P(x = 4)
• P(x < 4)

For the U(0, 12) distribution, which probability is requested in part b?

• P(x < 7.5)
• P(x > 4)
• P(x = 4)
• P(x < 4)

In the car age problem, the value k is found such that P(x < k) equals what?

• 1.00
• 0.25
• 0.50
• 0.75

In the car age problem, the value k found corresponds to which quartile?

• Second quartile
• First quartile
• Third quartile
• Median

When sketching the uniform distribution graph, which value must be identified?

• Radius of the curve
• Slope of the line
• Peak of the bell
• Height of the rectangle