Exam 11: Graphs

Suppose that the 1999 monthly cost for health care for an employee and two dependents is given in the following table. ">$\text { cellpadding }=" 0 " \text { cellspacing }=" 0 " \text { width }=" 60 \% \text { " border }=" 0 ">$ Provider Cost Maxicare \ 418.35 Cigna \ 431.06 Health Net \ 438.01 Pacific Care \ 444.61 Health Plan of the Redwoods \ 449.42 Kaiser \ 454.92 Aetna U.S. Healthcare \ 458.22 Blue Shield HMO \ 464.38 Omni Healthcare \ 467.77 Lifeguard \ 472.43 If there are multiple answers, separate them with a comma. If there is no answer, enter none. If necessary, round each answer to the nearest cent. What is the mode? $ __________

Consider a class of examination scores. $\{ 92,88,81,77,71,67,65,62,59,54 \}$ What score is the fifth decile?

The graph of $y = - 9$ is a horizontal line.

You roll a pair of dice 36 times and get the following set of data. The far column is the expected frequency. }">$\text { cellpadding }=" 0 " \text { cellspacing }=" 0 " \text { width }=" 58 \% " \text { border="0"> }$ Outcome Frequency Expected 2 0 1 3 2 2 4 2 3 5 2 4 6 5 5 7 9 6 8 6 5 9 3 4 10 4 3 11 2 2 12 1 1 Choose the answer that identifies your standard deviation and correctly compares it to the expected standard deviation.

Consider a class of examination scores. $\{ 96,87,84,75,70,68,65,63,60,51 \}$ What is the median?

The graph of $x = 1.8$ is a vertical line.

Label the points on the following graph. Each point lies exactly on an intersection of the grid. Use the scale 1 square = 5 units. Enter 5 ordered pairs in the form $( x , y )$ .

Find the functional value $h(-2)$ if $h ( x ) = 3 x - 7$

Suppose that the diameter of an electric cable is normally distributed, with a mean of 0.80 inches and a standard deviation of 0.01 inches. Suppose that a sample of the cable is randomly selected. What is the probability that the diameter will exceed 0.82 inches? Please round the answer to the nearest thousandth, if necessary.

Sketch the graph of the equation. $y = x ^ { 2 } + 2$

Graph the line $y = - 5$ .

In plotting a point $( x , y )$ , the $x$ -component is always __________. The distance the point is from the y -axis or The distance the point is from the x -axis or The distance the point is from the origin or The vertical distance in Quadrant IV

Find the functional value $h ( 2.6 )$ if $h ( x ) = 0.7 x$ $h ( 2.6 ) =$ __________

Find the range and the mean of the following data set. $0,1,1,2,3,4,11,26$ range: __________ mean: __________

The median of a set of numbers is always equal to one of the data values.

Find the functional value $F ( 2 )$ if $F ( x ) = 3 x - \pi$

Every data set of numbers has a mean.

Suppose a class obtained the following scores on a test. }">$\text { cellpadding }=0 " \text { cellspacing }=" 0 " \text { width }=" 34 \% \text { " border="0"> }$ Score Frequency 90 2 80 3 70 7 60 7 50 2 40 2 Round your answer to two decimal places. What is the median?

Solve the system by graphing. $\left\{ \begin{array} { l } x + y = 5 \\x - y = 3\end{array} \right.$ Enter your answer as an ordered pair, $( x , y )$ .