Mean & Median
The statistical average found by adding all data points together and dividing by the total number of points.
What is the mean?
The value or number that appears most frequently in a given data set
What is the mode?
the greatest common factor (GCF) of the expression 4x2-12x.
what is 4x?
The standard, symmetrical U-shaped curve created by any quadratic function.
What is a parabola?
The name given to the points where a quadratic graph crosses the x-axis.
What are x-intercepts? (also accept roots, zeros, or solutions)
The absolute first step required before you can manually locate the median of a data set.
What is putting the numbers in order? (From least to greatest)
The math operation used on the maximum and minimum values to calculate the range
What is subtraction?
the factored form of the difference of squares expression x2-64.
what is (x-8)(x+8)?
The highest or lowest point on a parabola, depending on which way it opens.
What is the vertex?
The solutions for x in the equation (x - 9)(x + 4) = 0
What are 9 and -4?
The median of this specific data set: (2, 5, 8, 11, 14, 30)
What is (9.5)?
The mode of this data set:{3, 7, 3, 9, 11, 7, 4, 7}
What is 7?
The factored form of the trinomial x^2 + 7x + 12
What is (x + 3)(x + 4)?
The vertical line equation that cuts a parabola directly down the middle.
What is the axis of symmetry?
The famous formula used to solve any quadratic equation in the form ax^2 + bx + c = 0.
What is the quadratic formula?
The missing value x if the mean of the data set {4, 7, 10, x} is exactly 7.
What is 7?
the range of the following test scores: 52,76,85,91,98.
what is 46?
The factored form of the trinomial x^2 - 3x - 10
What is (x - 5)(x + 2)?
The coordinates of the vertex for the function y = (x + 3)^2 - 5
What is (-3, -5)?
The two real numbers that satisfy the basic quadratic equation x^2 = 49.
What are 7 and -7?
The specific measure of center that changes drastically if a massive outlier is added to the data
What is the mean?
the term used to describe a data set has exactly two different modes.
what is bimodal?
The fully factored form of 3x^2 - 7x + 2
What is (3x - 1)(x - 2)?
The y-intercept of the quadratic equation written in standard form: y = 2x^2 - 4x - 9
What is (0, -9)?
The solutions to the equation x^2 - 6x + 8 = 0 found by factoring.
What are 2 and 4