The number of Skittles of each color that were found in a case with 1585 Skittles is given in the table below:

1.   The number of Skittles of each color that were found in a case with 1585 Skittles is given in the table below:

 

 

 

 

 

 

 

Color

 

 

 

Frequency

 

 

 

 

 

 

 

 

 

Red

 

 

 

285

 

 

 

 

 

 

 

 

 

Orange

 

342

 

 

 

 

 

 

 

 

 

Yellow

 

333

 

 

 

 

 

 

 

 

 

Green

 

 

 

271

 

 

 

 

 

 

 

 

 

Purple

 

354

 

 

 

 

 

Fill in the following:

 

 

 

 

 

 

 

 

 

 

 

 

 

Individual: ____________________________________________

 

 

 

Variable: _____________________________________________

 

 

 

Type of Variable:

 

Qualitative

 

Quantitative-Discrete

 

Quantitative-Continuous

 

 

 

Find the probability that a randomly selected Skittle will be yellow. Include a fraction answer and a decimal answer rounded to 3 decimal places.

 

 

P(                                           ) = ______________________ = __________________

 

 

 

Interpret the above probability in 2 ways:

 

 

 

_____________________________________________________________________

 

 

_____________________________________________________________________

 

 

Find the probability that a randomly selected Skittle will not be purple. Include a fraction answer and a decimal answer rounded to 3 decimal places.

 

 

P(                                           ) = ______________________ = __________________

 

 

 

Interpret the above probability in 2 ways:

 

 

 

_____________________________________________________________________

 

 

_____________________________________________________________________

 

 

Find the probability that a randomly selected Skittle will be red or green. Include a fraction answer and a decimal answer rounded to 3 decimal places.

 

 

P(                                           ) = ______________________ = __________________

 

 

 

Interpret the above probability in 2 ways:

 

 

 

_____________________________________________________________________

 

 

_____________________________________________________________________

 

 

Find the probability that a randomly selected Skittle will be be blue. Include a fraction answer and a decimal answer rounded to 3 decimal places.

 

 

P(                                           ) = ______________________ = __________________

 

 

 

Interpret the above probability in 2 ways:

 

 

 

_____________________________________________________________________

 

 

_____________________________________________________________________

 

 

MTH085

 

 

 

 

 

Probability Practice

 

 

 

 

 

Name ___________________________

 

 

 

 

 

2. A fair coin is flipped 4 times.

 

 

 

 

 

a. Create an outcome tree for the sample space. Then list all outcomes for the sample space.

 

 

 

 

 

 

 

The number of equally likely outcomes in this experiment is ___________.

 

 

 

b. Find the probability of getting exactly 3 tails.

 

 

 

P( ) = ______________________ = __________________ c. Find the probability of getting at least 1 heads.

 

 

 

P( ) = ______________________ = __________________ d. Find the probability of getting an even number of tails.

 

 

 

P( ) = ______________________ = __________________ e. Find the probability of getting all heads or all tails.

 

 

 

P( ) = ______________________ = __________________ f. Find the probability of getting exactly 2 heads and exactly 2 tails.

 

 

 

P( ) = ______________________ = __________________ g. Find the probability of getting exactly 2 heads or exactly 2 tails.

 

 

 

P(                                           ) = ______________________ = __________________

 

 

 

h. Are the events “getting exactly 2 heads” and “getting exactly 2 tails” mutually exclusive?  Please explain.