(Assignment)Properties Of Probability Distribution

Sheila does quality control for a company that manufactures lawn mower parts. Using the data from the table, what is the probability of having 2 defective parts in a day?

0.04

What is the probability that on a given day there, Sheila will find defects?

0.15

Using the data from the table, what is P(3)?

0.2

The fair spinner shown is spun 2 times. The set of possible outcomes are:

0.375

What is the probability of spinning a yellow or a green?

0.5

What is the probability of spinning yellow?

1

What is the sum of the probabilities for all possible outcomes?

1

What is the mean of the probability distribution

2.0

Which of the following represents a valid probability distribution?

A

Addison sells 100 tickets for $10 each for a raffle. There is 1 award for $100, 4 awards for $50, and 10 awards for $30. The remaining proceeds go to hosting the contest. Which table correctly displays the probability distribution?

B

A 4-section is spun 2 times. Each of the sections are the same size. Which graph shows the probability distribution for the random variable representing the number of greens?(Green is represented by the letter G)

Second Graph

The fair spinner shown is spun 1 time. There are four possible outcomes, one for each color. Based on the picture which statements are true?

The probability of each outcome is equal The outcomes have a uniform probability distribution

The mean is

equal to the median

The mode is

greater than the median

The mean is

less than the median

The probability distribution below is

negatively skewed

What type of data distribution is shown on the graph?

positively skewed

What type of data distribution is shown on the graph?

symmetric