Topic 5
Which is the value of (r)?
1/3r+3=21
r =54
Describe the sample and the population:
Honey Bee Florist Customer Survey: Favorite Flowers
Rose=15 Daisy=9 Tulip=16
Sample 40 customers of Honey Bee Florist.
Population: All Honey Bee Florist Customers.
Experimental Probability =
Number of times an event occur ÷ Total number of trials.
Which is the value of r?
345+r = 540
r = 195
Negative + Negative=
= + positive
Which is the value of n ?
2(4.3+n)=17.63
n = 4.515
How is the I.Q.R. found? In a box plot?
Subtracting:
I.Q.R.= Q3−Q1
Luke rolls a 10-sided solid with equal-sized faces labeled 1 to 10. What is the probability of rolling a 4?
1 out of 10 or 1/10 or 10%
It is unlikely to occur.
Negative + Positive=
= − Negative
Which is the value of x?
7(x+8)−4<143
x <13
Which is the value of x ?
x+13≥43
x ≥ 30
What is a dot plot?
A dot plot is a statistical graph that consists of data points plotted on a scale
What is Probability Model?
It is the form that a set of data obtained from samples of other data with behavior that is assumed to be random can take.
What percent of 150 is 33?
The percent is 22%
Positive + Negative =
= − Negative
Solve:
-15n>75
n < -5
What is population?
Population refers to the entire group or set of individuals, objects, or events being studied.
What is Theoretical Probability?
Theoretical probability describes how likely an event is to occur. Example: We know that a coin is equally likely to land heads or tails
Which is the value of x ?
2in÷7ft = x in÷56ft
x=2in×8
x = 16
Which is the value of x?
6x−9 >54
x =10.5
What is the Random Sample?
Is the subset of the population selected without bias in order to make inferences about the entire population.
What is the sum of probabilities?
P(white)= 1/2 P(blue)= 1/6
P(red)= 1/6 P(yellow)= 1/6
The sum of probabilities is 1.
1/2 + 1/6 + 1/6 + 1/6 = 1
Positive + positive =
= + positive