Q8 CONTINUOUS RANDOM DISTRIBUTIONS

What is the expected value of a continuous uniform distribution in the range: [6,22]

• 12

• 14

• 16

• it depends

What it the expected value of a discrete random distribution in the range of [6,22]

• 12

• 14

• 18

• 20

68% of a randomly distributed population are within a range of +/- one standard deviation from the mean

• YES

• NO

Z=1.645, What is Φ(z)?

• 1.645

• 0.9

• 0.95

• 0.975

נתון משתנה מקרי רציף שהתוחלת שלו שווה 1 והתוחלת של ערכו בריבוע שווה 2. מהי השונות שלו?

• 4

• -1

• 1

• 3

Which of the following distributions is considered memory-less?

• Random

• Poisson

• Exponential

• Normal