FR 2 Stats, Systems, Quad

Front

What is the median in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest. If there is an even number of observations, the median is the average of the two middle numbers.

Front

How do you determine which city has a higher median?

Back

To determine which city has a higher median, compare the median values of both cities. The city with the larger median value has a higher median.

Front

What does it mean if a histogram is symmetrically distributed?

Back

A symmetrically distributed histogram has a shape that is identical on both sides of the center point, indicating that the data is evenly distributed around the mean.

Front

What does it mean if a histogram is skewed right?

Back

A right-skewed histogram has a longer tail on the right side, indicating that there are a few high values that are pulling the mean to the right.

Front

What does it mean if a histogram is skewed left?

Back

A left-skewed histogram has a longer tail on the left side, indicating that there are a few low values that are pulling the mean to the left.

Front

How do you find the x-intercepts of a function?

Back

To find the x-intercepts, set y=0 in the equation and solve for x. The solutions are the x-intercepts.

Front

What is the solution to the system of equations y = 2x + 1 and y = 4x - 1?

Back

The solution is the point (1, 3), where both equations intersect.

Front

What is the axis of symmetry in a quadratic function?

Back

The axis of symmetry is a vertical line that divides the parabola into two mirror-image halves. It can be found using the formula x = -b/(2a) for the quadratic equation ax^2 + bx + c.

Front

What is the standard form of a quadratic equation?

Back

The standard form of a quadratic equation is ax^2 + bx + c = 0, where a, b, and c are constants and a ≠ 0.

Front

What is the vertex of a parabola?

Back

The vertex is the highest or lowest point of the parabola, depending on whether it opens upwards or downwards.