Advanced Placement (AP) High School

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The fictional country Industria is tracking its population data. In 1855, the first year vital statistics were reported for the country, the population was 1.6 million, with a crude birth rate of 43 per 1,000. At that time the population of Industria was growing quite slowly, because of the high death rate of 41 per 1,000. In 1875 the population began to grow very rapidly as the birth rate remained at the 1855 level. While the crude death rate dropped dramatically to 20 per 1,000. Population growth continued to increase in the small country into the late 1800's, even though birth rates began to decline slowly.

In 1895 the crude birth rate had dropped to 37, and the crude death rate to 12 per 1;000. A complete census was also conducted and revealed that the population of Industria had grown to 2.5 million. By 1950 population growth gradually began to decline as the death rate remained at its 1895 level, while the birth rate continued to decline to 22 per 1,000. In 1977 vital statistics revealed that the death rate was 10 per 1,000, and that population growth had slowed even more to an annual rate of 0.4%. By 1990 Industria had reduced its birth rate to that of its now constant, low death rate, and the population transition was complete.

(a) Calculate the annual growth rate of Industria in 1950.

(b) Caleulate the birth rate in Industria in 1977.

(c) Assume the population of Industria continues to maintain the population growth rate recorded for the country in 1895. Determine the year in which the expected size of the population will have quadrupled.

Answers

Answer 1

a) Note that the annual growth rate in 1950 is 1%

b) the birth rate in 1977 is 14/ 1000

c) the yeaer in which the population size will quadrupled is 1981.

How is this so?

a) Net annual growth rate = (birth rate - death rate) / 10

Net annual growth rate = (22 - 12) / 10 = 1%

b) Net annual growth rate = (birth rate - death rate) / 10

Birth rate = 0.4 x 10 + 10 = 14 per 1,000

c) Number of years = log(P4/P0) / log(1 + net annual growth rate)

Substituting the values given, we get:

Number of years = log(10/2.5) / log(1 + 0.015) = 86.8 years

Therefore, the year in which the expected size of the population will have quadrupled is 1895 + 86.8 = 1981.

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Related Questions

PLEASE PLEASE HELP ME. WILL GOVE BRAINLIEST! THIS IS FOR AN AP ESSAY AND I NEED SPECIFIC EXAMPLES OF RHETORICAL CHOICES IN THE TEXT THAT CONNECT HER JOURNEY TO SENSE OF SELF.

Prompt: Arvisa Alvord was born in 1958 on a Navajo reservation adjacent to New Mexico. After earning a BA from Dartmouth College and an MD from Stanford UniversityAlvord became the first Diné, or Navajo, woman to become board certified in surgeryHer autobiography, The Sca and the Silver Bear, describes her personal , educational, and cultural journey between two worlds: that of her Navajo heritage and that of the mainstream US. Read the following excerpt from her autobiography and analyze the rhetorical choices Alvord makes to develop the connection between this journey and her sense of identity and self.

Answers

In this passage, Arvisa Alvord uses various rhetorical choices to develop the connection between her journey and her sense of identity and self. Here are some examples:

Double Major and Native American Studies: Alvord's choice of a double major in psychology and sociology, modified with Native American studies, is a reflection of her sense of being torn between two worlds. This choice shows how she was trying to integrate her Navajo heritage with mainstream US education. It also shows her desire to learn more about her culture and perhaps teach others about it.

What is the autobiography about?

Others are:

Imagery and Metaphors: Alvord uses vivid imagery and metaphors to describe the Native American student group at Dartmouth. For example, she compares the students to "skittish wild horses" and describes their experiences as feeling "disconnected from the mainstream student body." These metaphors create a sense of tension and struggle that reinforces the idea that Alvord was torn between two worlds.

Historical Context: Alvord uses historical context to underscore the significance of her journey. She points out that Dartmouth College was founded with the intention of "educating the savages," yet it took hundreds of years for Native American students to be accepted and welcomed. This historical context highlights the challenges that Alvord faced in her journey and also reinforces the idea that her sense of identity was shaped by the struggle of her people.

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