functions
What are functions and examples?
maps each input to exactly one output
What are 5 types of real numbers?
rational, irrational, integer, whole, and natural/counting
What is the square √ 64?
What are good scatter plot examples?
shoe sizes and quiz scores for students in a class
What is an example of a two way table?
the top-left cell indicates that 45 people drink coffee in the morning, while the next cell to the right shows there are only 15 evening coffee drinkers.
How do you identify a function?
check to see if any of the x values are repeated
Is negative 50 a real number?
Negative numbers can be real numbers
How do you solve square roots of numbers
subtract the consecutive odd numbers from the number for which we are finding the square root, till we reach 0.
What are the 3 types of scatter plots?
What do you need to know about two way tables
a statistical table that shows the observed number or frequency for two variables, the rows indicating one category and the columns indicating the other category
What are three examples of functions?
f(x) = sin x, f(x) = x2 + 3, f(x) = 1/x, f(x) = 2x + 3, etc.
Is 0 is a real number?
How do you calculate square?
multiply the given number by itself to find its square number
What is a scatter plot in math?
uses dots to represent values for two different numeric variables.
What do two-way tables compare
the percentages of men and women who voted for each candidate.
What makes a function not a function?
x value has more than one output.
What is an example of a real number in math?
integers (-2, 0, 1), fractions(1/2, 2.5) and irrational numbers such as √3, π(22/7), etc., are all real numbers.
How do you find the cube root of a number?
first finding out the prime factorization of the given number and then later applying the cube root formula.
What is a very strong scatter plot?
If the points are clearly clustered, or closely follow a curve or line
What is each entry in a two-way table?
Each entry in the table is called a joint frequency. The sums of the rows and columns in a two-way table are called marginal frequencies.
How do you know if a function has an equation?
A function is an equation that has only one answer for y for every x.
Is √ 3 a real number?
Yes, the square root of 3 is a real number
Is 9 a perfect square?
9 is a perfect square
What is a strong positive scatter plot?
If the data points make a straight line going from near the origin out to high y-values,
What is the intersection of a two-way table?
The intersection of a row and a column is called a cell,