Statistics Probability Distributions

Determine the values of the random variables in each of the following distributions. Two coins are tossed. Let T be the number of tails that occur. Determine the values of the random variable T.

• 0

• 1

• 2

• 0,1,2

Determine the values of the random variables in each of the following distributions. A meeting of envoys was attended by 4 Koreans and 2 Filipinos. If three envoys were selected at random one after the other, determine the values of the random variable F representing the number of Filipinos.

• 0

• 1

• 2

• 0,1,2

It is the central or average of its corresponding probability mass function.

• mean

• variance

• standard deviation

• probability

The probabilities that a printer produces 0,1,2, and 3 misprints are 42%, 28%, 18%, and 12% respectively. What is the mean value of the random variable?

• 1

• 2

• 3

• 4

These are two values that describe how scattered or spread out the scores are from the mean value of the random variable.

• variance and standard deviation

• mean and probability distribution

• probability and statistics

• mean and variance

What is another name for normal distribution?

• Gaussian distribution

• Poisson distribution

• Bernoulli’s distribution

• Probability distribution

What is the total area in the distribution under the normal curve?

• 0

• 1

• 2

• 3

Classify the following random variables as discrete or continuous.

• Discrete

• Continuous

Classify the following random variables as discrete or continuous.

• Discrete

• Continuous

• 2, 4, 5

• 0, 1, 2, 3

• 1, 2, 3, 4

• 3, 5, 6