Basic Rules of Probability

Question 1

How many outcomes in the sample space: Rolling a pair of dice and flipping a coin

Accepted Answer

72

Question 2

A bag of marbles contains 5 red, 12 blue and 6 green. Find P(not orange).

Accepted Answer

1

Question 3

Find the probability of rolling an odd value on a 6 sided die and the spinner landing on green.

Accepted Answer

0.125

Question 4

Which sampling method is generally based on location?

Accepted Answer

Convenience

Question 5

Why is the following statement incorrect? The probability of rain tomorrow is 150%

Accepted Answer

The probability of an event cannot exceed 100%

Question 6

You select one card from a standard deck. Find P(red or 5)

Accepted Answer

28/52

Question 7

Find P(dog) using the table shown.

Accepted Answer

51/100

Question 8

If P(G) = 0.18, P(M) = 0.24 and G and M are independent, what’s the probability of G and M?

Accepted Answer

0.0432

Question 9

This type of study splits a group into two groups: a treatment group and a control group.

Accepted Answer

Controlled Experiment

Question 10

If the odds of an event are 2 to 5, what is the probability of the event?

Accepted Answer

2/7

Question 11

A bag of marbles contains 5 red, 4 blue, 3 yellow. Find P(blue, then yellow.) No replacement.

Accepted Answer

12/132

Question 12

Find P(female | cat) using the table shown.

Accepted Answer

39/49

Question 13

Find the probability of not rolling a number less than 6 and the spinner landing on yellow

Accepted Answer

0.042

Question 14

You draw two cards from a standard deck. Find P(7, followed by King). No replacement.

Accepted Answer

16/2652

Question 15

Placing names in a hat and drawing names is an example of:

Accepted Answer

a random sample

Question 16

Determine the number of outcomes in the sample space: Tossing three coins

Accepted Answer

8

Question 17

Find P(dog | male) using the table shown.

Accepted Answer

42/52

Question 18

If P(event)=3/8, what are the odds against the event?

Accepted Answer

5 to 3

Questions 18