Chapter 5
Chapter 6
Equations
Examples of This
Symbols
100
A number between 0 and 1 but is closer to 0 like .08, means this.
What is less likely to occur?
100
A variable that can take on a finite number of values.
What is a discrete variable?
100
f/n is the equation for this.
What is relative frequency?
100
The odds of rolling an odd number on an 8 sided dice.
What is 1/2 or .5?
100
P(A) means this.
What is the probability of event A?
200
A numerical measure between 0 and 1 that describes the likelihood that an event will occur.
What is probability?
200
A variable that can take any number of value in a line interval.
What is a continuous variable?
200
The probability for events with equal likely outcomes involves P(E) = ?/Total number of outcomes.
What is the Number of outcomes favorable to an event?
200
A sports announcer claims that Joe Schmo will likely set a new record since he broke all the other records in todays event.
What is intuition?
200
P(x) means this.
What is the probability of a data score?
300
This rule is applied when the word "or" is used to describe two disjointed events?
What is the addition rule?
300
An assignment of probabilities to each distinct or continuous random variable.
What is a probability distribution?
300
The probability of a hat Joe randomly buys being too tight is .24 or too big is .13.
What is .37 or 37%?
300
Auto insurance companies claim that in 2025 8000 or a third of car accidents were caused by teenagers. Calculate the relative frequency of teenagers getting into a car accident.
What is 33%
300
P(B|A)
What is the probability of event B given event A occurred?
400
This rule can be used to calculate the probability for any non-independent events.
What is the general multiplication rule?
400
The sum of all assigned probabilities must be ______.
What is 1?
400
Solve: P(Ac) = 1 - P(.46)
What is .54?
400
Studying for 3.5 hours can be an example of this type of variable.
What is a continuous random variable?
400
"n" in statistics means sample size but in probability it can mean this.
What is number of attempts or trials?
500
A probability assignment that incorporates past experience, judgment, or opinion to estimate the likelihood of an event.
What is intuition?
500
The central problem of binomial experiments is....
What is, to find the probability of r? (Or successes out of a number of trials).
500
The probability of exactly two "S's" from the given sample space.
STR, STS, SRR, TRS, TSR, RSS, TRR, TRT, RSR, TSS, RTS.
What is .27 percent?
500
This missing sample space from all the possible outcomes of flipping three quarters.
HHH, HTH, THH, TTT, THT, ____.
What is HTT?
500
"r" in statistics means correlation coefficient but in probability it means this.
What is number of successes out of n trials?
600
This way of expressing the probability of an event is in simplest form.
What is a reduced fraction?
600
P(A and B) =
What is the P(A) * P(B)?
600
8 text messages from mom can be this type of variable.
What is a discrete random variable?
600
"p" means this.
What is the probability of success?
700
This way of expressing the probability of an event involves rounding.
What is decimal form?
700
This equation is used to find the probability of ______.
? = P(A and B) / P(B)
What the P(A|B)?
700
Rolling a 6 sided dice 300 times should result in half the rolls being odd and even.
What is the Law of Large Numbers?
700
"q" means this.
What is the probability of failure?
800
This way of expressing the probability of an event can be calculated as a relative frequency.
What is as a percentage?
800
The probability of event A and event B if P(A) = 2/5 and P(B|A) = 3/4.
What is 30%?
800
If Joe and his teammates scores will be added together for a grand total score. These two events are considered to be ______.
What is dependent?
800
! means this.
What is factorial notation?
900
This way of expressing the probability of an event is not in simplest form.
What is an unreduced fraction?
900
The probability of P(A|B) if P(A and B) is 22 and P(B) is 36.
What is 61%?
900
My belt being too tight or too lose is an example of this.
What is a mutually exclusive event or disjointed event?
1000
Results of an experiment repeated many times should be close to the theoretical predictions.
What is the Law of Large Numbers?
1000
Solve for P(r) if n =3, r =3, p = .40, q = .60
What is .64?
1000
The summation of all data points times the probability value gets you this.
What is the mean for a probability distribution?
1000
The probability of 6 successes out of 32 trials. 6 is an example of this.
What is "r?"
1100
The possible sets or combinations of outcome events.
What is sample space?
1100
Solve for P(r) if n =5, r =2, p = .25, q = .75
What is ..26?
1100
If p = .18, then q =
What is .82?
1100
These are properties of a _______ experiment.
A fixed umber of trials.
Trials are independent of each other.
Each trial has only two possible outcomes.
The probability of success is the same for each trial.
Finding r.
What is properties of a binomial experiment?
1200
The probability of an event not occurring is known as this.
What is the complement?
1200
Solve for P(r) if n =6, r =4, p = .10, q = .90
What is .003?
1200
Calculate the probability distribution mean?
2*.14
3*.06
4*.12
5*.10
What is 1.44?
1200
6*5*4*3*2*1 = 720
What is Factorial Notation?
1300
If the P(A and B) = 0, it means the two events are ______ ______ or ______.
What is mutually exclusive or disjointed?
1300
Solve for P(r) if n =11, r =8, p = .65, q = .35
What is .22?
1300
Solve the following using this equation:
Cn, r = n! / r! (n-r)!
n = 5
r = 3
What is 10?