Basic Mathematics for College Students

61. EARTHQUAKES The magnitudes of 2008’s major
    earthquakes are listed below. Find the mean (round
    to the nearest tenth) and the median.


62. FUEL EFFICIENCY The ten most fuel-efficient
    cars in 2009, based on manufacturer’s estimated city
    and highway average miles per gallon (mpg), are
    shown in the table below.
    a. Find the mean, median, and mode of the city
    mileage.

b. Find the mean, median, and mode of the highway

mileage.

63. SPORT FISHING The report shown below lists the
    fishing conditions at Pyramid Lake for a Saturday in
    January. Find the median and the mode of the weights
    of the striped bass caught at the lake.
    Pyramid Lake—Some striped bass are biting
    but are on the small side. Striking jigs and
    plastic worms. Water is cold: 38°. Weights
    of fish caught (lb): 6, 9, 4, 7, 4, 3, 3, 5, 6, 9, 4,
    5, 8, 13, 4, 5, 4, 6, 9


64. NUTRITION Refer to the table below.
    a. Find the mean number of calories in one serving
    of the meats shown.
    b. Find the median.
    c. Find the mode.


65. Explain how to find the mean, the median, and the
    mode of a set of values.


66. The mean, median, and mode are used to measure the
    central tendency of a set of values. What is meant by
    central tendency?


67. Which measure of central tendency, mean, median, or
    mode, do you think is the best for describing the
    salaries at a large company? Explain your reasoning.


68. When is the mode a better measure of central
    tendency than the mean or the median? Give an
    example and explain why.

Translate to a percent equation (or percent proportion) and then

solve to find the unknown number.

69. 52 is what percent of 80?


70. What percent of 50 is 56?


71. % of what number is 28?


72. 56.2 is % of what number?


73. 5 is what percent of 8?


74. What number is 52% of 350?


75. Find % of 600.
    76.^12 % of what number is 5,000?

(^7 14)
(^16 13)
(^66 23)

REVIEW

WRITING

143

283

201

212

190

216

Bison

Beef (Choice)

Beef (Select)

Pork

Chicken (Skinless)

Sockeye Salmon

Species Calories

NUTRITIONAL COMPARISONS

Per 3.5 oz. serving of cooked meat

Source: The National Bison Association

620 Chapter 7 Graphs and Statistics

Date Location Magnitude

Jan. 5 Queen Charlotte 6.6

Islands Region

Jan. 10 Off the coast of 6.4

Oregon

Feb. 20 Simeulue, Indonesia 7.4

Feb. 24 Nevada 6.0

Feb. 25 Kepulauan Mentawai 7.0

Region, Indonesia

March 21 Xinjiang-Xizang 7.2

Border Region

April 9 Loyalty Islands 7.3

May 12 China 7.9

June 13 Eastern Honshu, 6.9

Japan

July 19 Honshu, Japan 7.0

Oct. 6 Kyrgyzstan 6.6

Oct. 11 Russia 6.3

Oct. 29 Pakistan 6.4

Nov. 16 Indonesia 7.3

Dec. 20 Japan 6.3

Source: Incorporated Research Institutions for Seismology

Model mpg city/hwy

Toyota Prius 50/49

Honda Civic Hybrid 40/45

Honda Insight 40/43

Ford Fusion Hybrid 41/36

Mercury Milan Hybrid 41/36

VW Jetta TDI 30/41

Nissan Altima Hybrid 35/33

Toyota Camry Hybrid 33/34

Toyota Yaris 29/36

Toyota Corolla 26/35

Source: edmonds.com