Combinatorics
We have 10 red and 10 white balls. We will take 5 white. What is the probability of picking a white ball?
1/3 or 0.333
Part of a line. Has two endpoints and includes all of the points in between.
Point
Angle
Line
Line Segment
Line Segment
SinA = CosA for what value of A?
A=90°
A=60°
A=45°
A=30°
A=45°
Create the explicit formula for the sequence:
2, 8, 14, ...
an=2+6n
an=-6+6n
an=6n-4
an=4-6n
an=6n-4
Calculate the MEAN for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7
7
7.44
8
7 and 8
7.44
We have ten white, ten red, and ten blue balls in our pockets. We selected five white, two red, and three blue balls. What is the probability that we will pick a white ball in the next move?
1/4 or 0.25
An exact location in space with no length or width.
Ray
Point
Line
Line segment
Point
If tanA = CotA then the value of SecA is ?
2
1
√2
1/√3
√2
Find the first term of the given sequence:
a14=68
d=3
14
20
26
29
29
It is the science of collecting, organising, analysing and interpreting data in order to make decisions.
Data
Statistics
Variable
Population
Statistics
There are ten red, six blue, and eight green balls in the hat. What is the probability that a randomly selected ball is blue or red?
0.6667
Two lines intersect at a ....
angle
point
line
intersection
point
If tanx = Sin45°Cos45°+Sin30° then x equals :
45°
90°
30°
1/2
45°
Find the 32nd term of this sequence.
34, 37, 40, 43, ...
32
64
127
356
127
What is data?
Information coming from observations, counts, measurements or responses.
The science of collecting, organising, analysing, and interpreting data in order to make decisions.
A numerical description of a population characteristic.
A numerical description of a sample characteristic.
Information coming from observations, counts, measurements or responses.
The bag has six red, five green, eight light blue, and 11 yellow balls. What is the probability that we will pull out the green bullet?
1/6 or 0.6667
Part of a line. Has one endpoint and continues on forever in one direction.
Line Segment
Line
Ray
Point
Ray
tanB= 1/√3 at B = ?
60°
30°
90°
45°
30°
Find the 32nd term of this sequence.
9, 4, -1, -6, -11, ...
81
-34
-146
-225
-146
Complete the definition
A _________ consists of all subjects (human or otherwise) that are being studied
Statistics
Number
People
Population
Pueblo
Population
We have four red, three blue, six yellow, and two black balls in the bag. Find the probability of pulling the blue or red ball.
p=(3+4)/(4+3+6+2)=7/15
A plane is named by any 1 point on the plane.
True or False?
False because a plane is named by 3 NON-COLLINEAR POINTS ON THE PLANE
Sec60°× tan30°- Cos90° is equal to :
2
1/2
√3/2
2/√3
2/√3
Given the sequence:
25, 21, 17, 13,...
Write the explicit equation that models the sequence. (Hint: Simplify your equation.)
an = 4n + 29
an = -4n + 25
an = -4n + 29
an = 4n + 25
an = -4n + 29
In 2006, major league baseball teams spent a total of $2,326,706,685 on players’ salaries. Does this numerical value describe a population parameter or a sample statistic?
As it refers to (all) MLB teams (population), this is a parameter.
As it refers to (all) MLB teams (population), this is a statistic.
As it refers to some MLB teams (sample), this is a parameter.
As it refers to some MLB teams (sample), this is a statistic.
As it refers to (all) MLB teams (population), this is a parameter.