What are the three different types of histogram called?
100
if the sum of all the probablity equals to 1.
How do you know if the probablity is valid ?
100
Continuous is what can not be calculated or not a whole number( on going), and Discrete and exact number.
What is the difference between continuous or discrete?
100
A countable number
Ex:
What is a discrete variable and give an example.?
200
Probability Distribution
What is an assignment of probability?
200
Pie chart, linear graph etc.
What other graphs are there besides histogram?
200
.11+1+.04= .25
the probablity that 2 or more fails on report card is .25
X| 0 | 1 | 2 | 3 | 4 or more
F| 25| 10 | 5 | 3| 2|
P(x)|.6 | .22 | .11| .1 | .04
what is the probablity that a student selected at random is on academic probation (has 2 or more fails on his/her report card)?
200
Discrete because its a whole number you cant have half a power aid.
Identify and explain the variable:
The number of power aids giving to athletes.
200
Give at least 5 reasons on what you have learned in this chapter.
300
skewed to the left
What is it called when the histogram has a tail on the left?
300
the probablity that just 3 students selected at random are on academic probation is .1
X| 0 | 1 | 2 | 3 | 4 or more
F| 25| 10 | 5 | 3| 2|
P(x)|.6 | .22 | .11| .1 | .04
what is the probability that a student selected at random is on academic probation (just 3)
300
You add up all the number from the third row
How do you find the mean?
300
Continuous, because of the time.
Define whether it would be Discrete or Continuous,
The amount of time it takes to take the SAT or ACT? Explain
400
Expected value
What is the mean or the average value?
400
Negative Distribution
What does skewed left mean? draw what it looks like
400
Depends on the class
what the importance of Probability Distribution.
400
std=square root sum of(x-mean)^2 P(x)
What is the formula for standard deviation?
400
mean=ExP(x)
What is the formula of the expected value of x.
500
Valid Probability Distribution which should equal 1
What is the sum of all probability equal?
500
The mean
What is the highest point on the histogram?
500
Standard Deviation (X-M)^2 * p(x)
What is the last row of the probability Distribution. Give the formula.
500
Identifying variables
probability distribution chart
histograms
expected value
standard deviation
What are the main points of this chapter.
500
x|P(x)|x*P(x)| x-m | (x-m)^2| (x-m)^2 * P(x)
What are the the 6 formulas from the porbability distribution chart.