Math Apps Textbook Chapter 1 Assignment: Discretionary Expenses

Read pages 4, 5, 8 and review the examples. Complete the following questions from page 11.

#2. For most people, health club membership expenses are considered discretionary. Alli lives in a big city and wants to join a health club. She researched monthly membership costs and found the following for health clubs within a 5-mile radius of her apartment:

$65, $50, $44, $86, $90, $50, $35, $110, $70, $50, $35, $60, $56

Part a) What is the mean monthly membership fee? Round your answer to the nearest cent.

• $61.62
• $48.55
• $70.15
• $53.90

#2. For most people, health club membership expenses are considered discretionary. Alli lives in a big city and wants to join a health club. She researched monthly membership costs and found the following for health clubs within a 5-mile radius of her apartment:

$65, $50, $44, $86, $90, $50, $35, $110, $70, $50, $35, $60, $56

Part b) What is the median monthly membership fee?

• $44
• $70
• $56
• $60

#2. For most people, health club membership expenses are considered discretionary. Alli lives in a big city and wants to join a health club. She researched monthly membership costs and found the following for health clubs within a 5-mile radius of her apartment:

$65, $50, $44, $86, $90, $50, $35, $110, $70, $50, $35, $60, $56

Part c) What is the mode monthly membership fee?

• $110
• $50
• $65
• $56

#3. Kate is a professional musician. She wants to make an essential purchase of an upgrades used bass guitar for her work. She found the following prices for the same make and model bass guitar from various sellers: $699, $599, $699, $680, $590, $720, $650, $800. Part a) What is the mean price? Round your answer to the nearest cent.

• $651.90
• $689.48
• $590.00
• $679.63

#3. Kate is a professional musician. She wants to make an essential purchase of an upgrades used bass guitar for her work. She found the following prices for the same make and model bass guitar from various sellers: $699, $599, $699, $680, $590, $720, $650, $800. Part b) What is the median price?

• $689.50
• $679.63
• $590.00
• $699.00

#3. Kate is a professional musician. She wants to make an essential purchase of an upgrades used bass guitar for her work. She found the following prices for the same make and model bass guitar from various sellers: $699, $599, $699, $680, $590, $720, $650, $800. Part c) What is the mode price?

• $680
• $800
• $590
• $699

#4. Nick and Liz have decided to move from the city to the suburbs. This means that they will have to make the essential purchase of a car in order to get to work. They researched used 2-year-old cars of the same make, model, condition, and equipped with the same options. They found a website stating that the average price should be $18,500. These are the prices they were quoted: $15,500 $18,800 $16,900 $19,900 $18,000 $21,000. If they continued their search for one more price quote, what would that price have to be so that the mean of all seven of the car prices would be the same as the mean quoted on the website?

• $19,400
• $20,000
• $21,000
• $18,900

#5. Before the last school year began, it was estimated that the average discretionary personal expenses each school year for a student attending a 4-year public college were $2,110. This past summer Ashley decided to poll seven of her friends attending 4-year public college because she thought that estimate was low. She made a list of their actual school-year expenses: $2,800 $1,990 $2,005 $1,860 $2,200 $2,000, $2,400. Part a) What is the mean of her friends personal expenses? Round your answers to the nearest cent.

• $2,100.80
• $1,963.30
• $2,179.29
• $2,120.99

#5. Before the last school year began, it was estimated that the average discretionary personal expenses each school year for a student attending a 4-year public college were $2,110. This past summer Ashley decided to poll seven of her friends attending 4-year public college because she thought that estimate was low. She made a list of their actual school-year expenses: $2,800 $1,990 $2,005 $1,860 $2,200 $2,000. Part b) How does that average compare with the estimate?

• less than $100 lower
• less than $100 higher
• more than $100 higher
• the same