Math Term 1
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37 Terms
What is the average of a data set called?
Mean
What measure identifies the middle value?
Median
What measure identifies the most frequent value?
Mode
What should you do before finding the median?
Arrange the data from least to greatest
What happens when there are two middle values?
Average the two middle values
What does the range represent?
The difference between the highest and lowest values
What does variability describe?
How spread out the data are
What is mean deviation?
The average distance of values from the mean
What do you divide by when finding mean deviation?
The number of values (n)
What do you divide by when finding sample variance?
n − 1
What is the square root of variance called?
Standard deviation
What is an unusually high or low value?
Outlier
What is an experiment?
An activity or process that produces possible results
What is one possible result of an experiment called?
Outcome
What is the set of all possible outcomes of an experiment?
Sample space
What is a set of one or more outcomes called?
Event
What is the probability of an impossible event?
0
What is the probability of a certain event?
1
What probability is based on actual results?
Experimental probability
What probability is based on possible outcomes?
Theoretical probability
What principle tells you to multiply the number of choices?
Fundamental Counting Principle
How many outcomes are there when rolling a die and tossing a coin?
12
What method uses branches to show choices?
Tree diagram
What method uses rows and columns to organize choices?
Table
What method lists outcomes one by one?
Systematic listing
What does 'product' mean in algebra?
Multiplication
What does 'difference' mean in algebra?
Subtraction
What does 'twice a number' mean in algebra?
2 times that number
What are like terms?
Terms with the same variables and exponents
Can 3x and 4y be combined?
No
What is the number being raised to a power called?
Base
What tells how many times the base is used as a factor?
Exponent
What happens to the exponents when multiplying same bases?
Add them
What happens to the exponents when dividing same bases?
Subtract them
What happens in a power of a power?
Multiply the exponents
What is any nonzero number raised to zero?
1
What does a negative exponent indicate?
A reciprocal