5.1
Define Probability
What is a measure of the likelihood that the event will occur. A number from 0 to one, expressed as a decimal, fraction, or percent?
Explain the difference between independent and dependent events.
What is the outcome of one independent event does not affect the other outcomes and the occurrence of one dependent event does affect the other outcomes?
Define a two-way table.
What is a frequency table that displays the data collected from one source that belong to two different categories, represented by rows and columns?
Explain the difference between disjoint and overlapping events:.
What is disjoint events have no outcomes in common while overlapping events have one or more outcomes in common?
Define a random variable.
What is a variable whose value is determined by the outcomes of a probability experiment?
The formula for odds in favor vs. odds against.
What is odds in favor equals the number of favorable outcomes/number of unfavorable outcomes? What is odds against equals the number of unfavorable outcomes/number of favorable outcomes?
Formula for probability of independent events.
What is P(A and B) = P(A)(P(B))?
Define a joint relative frequency.
What is the ratio of a frequency that is not in the total row or total column to the total number of values?
Write probability of overlapping events formula.
What is P(A or B) = P(A) + P(B) – P(A and B)?
Define a probability distribution.
What is a function that gives the probability of each possible value of a random carriable and he sum of all the probabilities in a probability distribution must equal 1?
The set of all possible outcomes.
What is the sample space?
Formula for probability of dependent events.
What is P(A and B) = P(A)(P(B|A)?
Define a marginal relative frequency.
What is the sum of the joint relative frequencies in a row or column?
Explain the difference between Permutations and Combinations.
What is a permutation is an arrangement of objects in which the order is important, while a combination is a selection of objects where the order does not matter?
Name two conditions must a binomial experiment meet.
What is each trial only had two possible outcomes: success and failure, and the probability of success is the same for each trial.
Theoretical Probability Formula.
What is the number of favorable outcomes/Total number of outcomes?
To win a competition at your school, you must spin a spinner divided into 5 equal parts. You must spin a two on your first spin and greater than 3 on your second spin. Are these events independent or dependent?
What is independent?
Define a conditional relative frequency.
What is the ratio of a joint relative frequency to the marginal relative frequency?
The permutation of 5 things taken 3 at a time equals...
What is 60 outcomes?
Find the probability of rolling exactly 3 ones when you roll a six-sided die 5 times.
What is about .032?
You flip a coin and roll a six-sided die. List all possible outcomes?
What is 12 outcomes, Heads (1,2,3,4,5,6) and Tails (1,2,3,4,5,6)?
You randomly select 3 cards from a deck. Find the probability that each card is a spade when you don’t replace each card after you draw.
What is 0.0016?
Make a two-way table that shows the marginal frequencies in survey where 106 juniors and 114 seniors respond. Of these, 42 juniors and 77 seniors plan on attending. Write it on the whiteboards at your table.
Look at printed out picture.
You make 6 posters to hold up at a basketball game. You and 5 friends sit next to each other in a row. The posters are distributed at random. Find the probability that TIGERS is spelled correctly.
What is 1/720?
Let c =1 represent when a randomly chosen card out of a standard deck of 52 playing cards is a heart and c =2 represent everything otherwise. Make a table showing the probability distribution for c. Write it on your whiteboard.
Look at the print out.