## Monday, June 29, 2009

### practice for tomorrow's quiz

1. Given the following death statistics, find the rate per 100,000 population. Round to the nearest whole number.

a) 1950: U.S. population = 151,000,000
number of heart disease deaths = 886,000

b) 1970: U.S. population = 203,000,000
number of heart disease deaths = 1,000,000

c) 1990: U.S. population = 249,000,000
number of heart disease deaths = 801,000

2) For the following words in metric terminology, tell whether the measure is in length, volume or weight, and how many of the main unit there is given the prefix.

Example: hectometer
length, 100 meters

a) millimeter

b) centiliter

c) metric ton

Prof. Hubbard said...

1. Given the following death statistics, find the rate per 100,000 population. Round to the nearest whole number.

a) 1950: U.S. population = 151,000,000
number of heart disease deaths = 886,000

886000/151000000*100000 =
587 per 100,000

b) 1970: U.S. population = 203,000,000
number of heart disease deaths = 1,000,000

1000000/203000000*100000 =
493 per 100,000

c) 1990: U.S. population = 249,000,000
number of heart disease deaths = 801,000

801000/249000000*100000 =
322 per 100,000

2) For the following words in metric terminology, tell whether the measure is in length, volume or weight, and how many of the main unit there is given the prefix.

Example: hectometer
length, 100 meters

a) millimeter
length, 1/1,000 of a meter

b) centiliter
volume, 1/100 of a liter

c) metric ton
weight, special term for 1,000,000 grams or 1,000 kilograms

Ilmi Hub said...