Questions and Answers of Financial Algebra Advanced Algebra

Janine is analyzing spending habits of students in her high school. She finds a mean monthly discretionary expense of $70 spent on having meals out with friends. The standard deviation of a
Back-to-school shopping is a very big business. Some may consider these expenses essential while others look at them as discretionary costs. However you look at it, the data of the average dollars
A recent Internet survey showed per-day lodging expenses at Disney World in Orlando range from less than $100 for a campsite to more than $2,000 for a top luxury room. The cost-per-day average of the
Discretionary music purchases are a big business. Albums can be downloaded, streamed, played from a CD, played on vinyl, and more. What types of albums are being purchased in the United States? Music
Seaquoia River Cruises offers a 7-day travel package. The prices vary based on the room class booked, as indicated in the following spreadsheet:Write the spreadsheet formulas for the indicated
Four car rental prices were quoted for a 3-day rental. The frequencies are listed. Let x represent the frequency of the $240 price quote. Use the information shown in the chart to write algebraic
A distribution of newly manufactured amusement park bumper cars has mean 400 pounds and standard deviation 2 pounds. A distribution of customers on line for the bumper-car ride has mean 60 pounds and
Over the past 4 years, Reggie noticed that as the price of a slice of pizza increased, her college tuition also increased. She found the correlation coefficient was r 50.49.a. Which of the following
International travel is usually more expensive than domestic travel. A recent survey found that the average per-person cost of a 12-day international vacation is $1,755. This includes transportation,
Construct a scatter plot using the year number as the x-coordinate and catalog album sales as the y-coordinate. Use 0 ≤ x ≤ 8 as the x-axis interval and 100 ≤ y ≤ 220 as the y-axis
Suppose that two of the Deluxe Luxury rooms in the spreadsheet above were being renovated and unavailable for sale on a particular trip. Therefore, cell C6 would change from 20 to 18.a. Would all,
Jocelyn compiled data on the number of hours students work per week the summer after senior year. The minimum number of hours in the distribution was 23. The range was 17.a. What is the maximum
A Caribbean resort has a nightly limbo contest on the beach. Participants must be less than 64 inches tall. The distribution of heights of adult American men is approximately normal with mean 69
Describe each of the following correlation coefficients using the terms strong, moderate, or weak and negative, or positive.a. r 50.21b. r 520.87c. r 50.55d. r 520.099e. r 50.99f. r 520.49
Use the round-trip airfare table in problem 5 above to determine the percentile rank of $1,133.
The table on the right, from the Statistical Abstract of the United States, shows amusement park attendance at the top 15 amusement parks for given years.a. Find the mean attendance, in thousands,
An orchestra of 25 members bought tickets, at all different prices, to a concert, and the mean price paid was $82. A new musician joined the orchestra and spent $90 on his ticket to the same concert.
Which of the following scatter plots shows a correct line of best fit?
Visitors to the Royal Ranch Golf Paradise shoot an average of 88 on their 18-hole golf course. The standard deviation is 12. Visitors to the Glen Oaks Golf Resort shoot an average of 97 with a
Ralph wants to join a travel soccer team, a discretionary expense. His parents tell him he must get a job to earn the money to cover the costs. Ralph now views this discretionary expense as an
The summer income of the 3,408 students at Van Buren High School last year was normally distributed with mean $1,751 and standard deviation $421.a. Approximately what percent of the students had
Getaway Sports is a vacation destination for the serious sports fanatic. Rajesh is in charge of equipment for the complex. The last shipment of pingpong balls was normally distributed with a mean
Shannon is traveling from New York City to Washington, D.C. She wants to go by train so she can see the views. Since she will be driving home with a family member, she only priced the cost of a
Is it possible for a linear regression line to go through every point on a scatter plot? Is it possible for a linear regression line to not go through any point on a scatter plot? Explain.
A finance magazine did a survey and found that the average American family spends $1,600 on a summer vacation. If the distribution is normal with standard deviation $411, find the amount a family
Use these data from Example 2 about the number of boxes purchased and the price per contact lens to answer a through g below. (1, 6.00), (2, 5.90), (4, 5.40) (8, 5.20), (10, 4.80), (12, 4.10), (14,
Boaters at Springs Creek Marina have the option to rent fishing rods. The table below shows the number of boat owners that rented fishing rods last Labor Day weekend. The marina wants to compile some
Sixteen men and sixteen women purchased magazine subscriptions. The distribution of prices had the same mean, minimum score, and maximum score. The red markings on each number line below show where
For many travelers, the cost of getting to an airport needs to be factored into the travel expense. The table at the right lists the cost of six different ways to get from the center of a major city
Sometimes outliers can have a significant effect on statistics, and sometimes they don’t. Use the following distribution to determine which statistics are affected by outliers. Round to the nearest
The table gives the number of songs purchased from My Tunes at different prices per song.a. Find the equation of the linear regression line. Round the slope and the y-intercept to the nearest
Sometimes outliers can have a significant effect on statistics, and sometimes they don’t. Use the following distribution to determine which statistics are affected by outliers. Round to the nearest
Examine the graph below. It shows the global iPhone phone sales by year in millions of units sold.a. Write nine ordered pairs with the first coordinate being the year number and the second being the
The number of days each licensed driver in Marion County uses a commuter rail line annually is normally distributed with mean 66 and standard deviation 21.How many days must a driver use a commuter
The mean of a distribution of selected theme park admission prices is $59 with a standard deviation of $3.99. The mean cost of a distribution of a specific home stereo system sold at many different
A local comic book convention had an admission price of $17. During the week-long show, 19,344 people paid to enter.a. What is the range of the distribution of admission fees?b. What is the standard
Use the cruise ship room price table in problem 7 above to determine the percentile rank of $6,962.Data from problem 7:Seaquoia River Cruises offers a 7-day travel package. The prices vary based on

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