Graphs/Central Tendancy
+, -, x, / Integers
Probablility
Real/Rational #'s
Matrices
100
Find the mean: 24, 45, 33, 27, 24
What is 30.6
100
Evaluate: 4a^2 - b^2 a = 3, b=2
What is 32
100
You have 3 green socks, 5 blue socks, and 1 red sock in a drawer. What is the probablility of pulling out a red sock on the first try?
What is 1/9
100
Evaluate: a - 3b a = 5/6 b = -2/3
What is 2 5/6
100
Which comes first in a matrix order, row or column?
What is row
200
Find the median: 24, 45, 33, 27, 24
What is 27
200
Evaluate: (2a + b) / 2 a = 3, b = 2
What is 4
200
You have 8 nickles, 3 quarters, and 15 pennies in your pocket. What is the probability of pulling out a dime?
What is 0
200
Evaluate: 3a - 4b a= 5/6 b = -2/3
What is 5 1/6
200
Add the matrices: l 2 3 l + l -4 -7l
What is l -2 -4 l
300
Find the mode: 24, 45, 33, 27, 24
What is 24
300
(-13) + (-4)
What is -17
300
You are in a class of 70 students. Half of them have on hats and quarter of them have on bandanas. What is the chance of you being one of the students without a hat?
What is 50%
300
Evaluate a / b a = 5/6 b = -2/3
What is -1 1/4
300
Create an example of a square matrix
What is ....must have the same number of rows as columns
400
This type of graph has bars that have no space between them.
What is a histogram
400
Evaluate: (x/-2) + 2z x = 4, z = -3
What is -8
400
A softball player made a hit 54 times in the last 171 times at bat. Find the probability that the player will get a hit the next time at bat. Reduce your answer.
What is 6/19
400
True or false? All rational numbers are integers
What is false.....1/2 is rational but not an integer
400
Create an example of a column matrix
What is l a b c d l
500
Draw an example of a stem/leaf plot
What is 3 l 0, 1, 4, 6 6 l 2, 4, 6
500
Evaluate: l c - a l a = -5 c = -7
What is 2
500
The WhoDoneIt Book Company inspects a sample of 860 books and finds that 172 books have defective bindings. What is the chance that a book does not have a defective binding?
What is 688/860 = .8 = 80% chance
500
Fill in the blank with the number that makes the statement true: 3^2 x ____ = 1 (three squared times what number equals 1?)
What is 1/9
500
What is the number that is used to multiply matricies called? (we mentioned it briefly)
What is a scalar.