The following table provides information on the 10 NASDAQ companies with the largest percentage of their stocks traded on July 6, 2009. Specifically, the table gives the information on the percentage of stocks traded and the change (in dollars per share) in each stock's price.

Stock	Percentage Traded	Change ($)
Matrixx	19.6	-0.43
SpectPh	14.7	-1.10
DataDom	12.4	0.85
CardioNet	9.3	-0.11
DryShips	9.0	-0.42
DynMatl	8.0	-1.16
EvrgrSlr	7.9	-0.04
EagleBulk	7.9	-0.11
Palm	7.8	-0.02
CentAl	7.4	-0.57

a. With percentage traded as an independent variable and the change in the stock's price as a dependent variable, compute$S S_{x x}, S S_{y y}$, and$S S_{x y}$.

b. Construct a scatter diagram for these data. Does the scatter diagram exhibit a negative linear relationship between the percentage of stock traded and the change in the stock's price?

c. Find the regression equation$ $\hat{y}$=a+b x$.

d. Give a brief interpretation of the values$a$and$b$calculated in part$ $\mathrm{c}.

e. Compute the correlation coefficient$r$.

f. Predict the change in a stock's price if$8.6 \%$ of the stock's shares are traded on a day. Using part b, how reliable do you think this prediction will be? Explain.

When you add a suffix that begins with a vowel to a word that ends in a consonant, the spelling of the original word does not change. For example, inspect + or = inspector. Add -ance, -ish, or -er to each word below to form three properly spelled words. travel

Consider the function f(x) = x$^3$ - 6x$^2$ + 8x + 5.

Estimate numerically the instantaneous rate of change of f(x) at x = 2 and at x = 4.

If a word ends in two consonants, do not change the consonants when you add a word ending. Thus, encroach + ing = encroaching. Add -ful, -ive, or -en to the words below to create. three properly spelled new words. help

Complete the following conversation that takes place at a restaurant with the appropriate words from the box.

agua para menú ensalada comer momento tomar cómo acuerdo juga veo siempre

JULIA: Hoy voy a tomar un (2) __________________________ de naranja.

Refer to earlier exercise. The Sylvania CFL 65-watt replacement bulbs that utilise only 16 watts are advertised as having an average lifespan of 8000 hours on their packaging. Assume that the average lifespan of each of these bulbs is 8000 hours, with a 400-hour standard deviation. Determine the likelihood that a random sample of 25 of these bulbs will have a mean life of a. less than 7890 hours b. between 7850 and 7910 hours c. within 130 hours of the population mean d. less than the population mean by 150 hours or more

Graph each function and its inverse using the same set of axes.

$F(x)=-\sqrt{x}$

Approximate the slope of the tangent line (instantaneous rate of change) for the function $f(x)=5^{x}-x^{3}$ at x = 1.

In each of the following sentences, underline any misspelled word and write the correct word above it.

Example 1. After we finished sewing the costumes, we $\overset{\textit{\color{#c34632}{dyed}}}{{\underline{\text{died}}}}$ them.

When he forgets to cross his ts, they look just like his ls.

Above the indefinite pronoun in each sentence, write S if it is singular or P if it is plural. Then, underline the correct form of the verb in parentheses.

Example: $\overset{\textit{\color{#c34632}{S}}}{{\text{Everyone}}}$ who likes vegetables (enjoy, $\underline{{enjoys}}$) this meal.

Everyone, including the movie critics, (raves, rave) about her latest movie.

How can you be a lifelong learner?

Find the percentage rate of change of f(x) at the indicated value of x. Round to the nearest tenth of a percent. f(x)=75+110x; x=16

Find the percentage.

$6 \%$ of $48$

When you add a suffix that begins with a vowel to a word that ends in a consonant, the spelling of the original word does not change. For example, inspect + or = inspector. Add -ance, -ish, or -er to each word below to form three properly spelled words. accept