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MU123 حل واجب الجامعة العربية المفتوحة

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TMA حل واجب الجامعة العربية المفتوحة

الفصل الدراسي الثاني  2014 -2015

MU123 حل واجب الجامعة العربية المفتوحة

 MU123: Discovering Mathematics

 

Q-1: Find the GDP per capita for each country in 2012 and 2013 and comment on your results (40-50 words)? Round your answers to the nearest dollar.(10 points)

Q-2: Based on your final answer in Q-1; calculate the mean, median, range, interquartile range of the GDP per capita in 2013? . (10 points)

Q-3: Based on your final answer in Q-1; calculate the standard deviation of the GDP per capita in 2013? Comment on your answer based on your understanding for the concept of standard deviation? (40-50 words) (10 points)

Q-4: In a separate table; Find the percentage of each population group (population aged 0-14; 15-64 and 65 and above) from the total population of each country in 2012? Comment on your results regarding the cross-country differences in age distribution? (40-50 words). (10 points)

Q-5: consist of three parts:

Q-5-A: In a separate table; Round all age groups and the total population in 2012 to three significant figures for each country. (5 points)

Q-5-B: In a separate table; Round the GDP in current US$ in 2012 to the nearest billion for each country. (2 points)

Q-5-c: In a separate table; Round the total labour force in 2012 and 2013 to the nearest thousand for each country. (3 points)

Q-6: consists of two parts:

Q-6-A: In a separate table find the yearly growth rate of total population between 2012 and 2013 for all eight countries? Comment on your answers (40-50 words)?

(5 points). Round your final answers to 2 s.f

Q-6-B: In a separate table find the yearly growth rate of GDP current US$ between 2012 and 2013 for all eight countries? Comment on your answers (40-50 words)?

(5 points).

Q-7: consists of two parts:

Q-7-A: in a separate table calculate the approximate ratio (1: whole number) of population group (aged 0-14) to the total population in 2012 for all eight countries? Comment on your results; which countries have the highest child ratio. (40-50 words).

( 5 points). Show your full work and round your final answers to 1 s.f.

Q-7-B: in a separate table calculate the approximate total dependency ratio (number: number) for each country in 2013? Comment on your answer? (40-50 words).

(5 points)

Q-8: Use Microsoft Excel in presenting the GDP per capita in 2013 (use answer Q-1) in bar chart for all eight countries. (10 points)

Q-9: Use Microsoft Excel in presenting the total population for the eight Arab states in one pie chart? (10 points)

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MU123 حل واجب الجامعة العربية المفتوحة

Posted on by Posted in homework

TMA حل واجب الجامعة العربية المفتوحة

الفصل الدراسي الأول  2014 -2015

MU123 حل واجب الجامعة العربية المفتوحة

 MU123: Discovering Mathematics

Question-1: (20 marks)

  1. (6 marks) Simplify:
  2. ( -2 +1 )+ 5
  3. -3(-2a+b)-(-9b)
  • (1 – 5²) ÷ (1 – 3²) – (-10)
  1. (6 marks) Convert the following units:
  2. Express 576mm in centimeters.
  3. Express 13.5kg in grams
  • A person’s height is given as 1.75m. What will it be in centimeters?
  1. (8 marks) Round a measurement of 1.069m to:
  2. The nearest whole number of meters (2 marks)
  3. Two significant figures   (2 marks)
  • The harvest of wheat on a farm increases by 40% in one year. If the harvest of wheat last year was 60,000 bushels, what would the harvest be this year? (4 marks)

Question-2: (20 marks)

  1. (6 marks) Use the appropriate formula to work out:
  2. The average speed in kilometers per hour, if a distance of 35 km is covered in 55 minutes
  3. The distance travelled in kilometers after traveling for 30 minutes at an average speed of 80 kilometers per hour.
  • The time in seconds to cover a distance of 450 meters at an average speed of 10 meters per seconds.
  1. ( 6 marks) Naismith’ Rule estimated that the time taken for a walk up a hill is given by the formula T =

T: is the time for the walk in hours.

D: is the horizontal distances walked in kilometers.

H: is the height climbed in meters.

Estimate how long a walk will take if the horizontal distance is 2km and the height is 217m.

    1. (6 marks) Use a factor tree to determine the prime factorization of the following numbers
      1. (6 marks) Use a factor tree to determine the prime factorization of the following numbers
      2. 500500(8 marks)Evaluate the following expressions if r = -3, s = 3, t = 1/3 and v = 5

Question-3: (20 marks)

  1. (6 marks) Use a factor tree to determine the prime factorization of the following numbers
  2. 500
  3. 120
  • Find the lowest common multiple and highest common factor of 250 and 60.
  1. (14 marks) The following grade were earned by students on a midterm business math exam:

75      82      63      88      94

81      90      72      84      87

98      93      85      68      91

78      86      91      83      92

 

Find the mean, median and inter-quartile?

Find the deviations from the mean.

What percent of the students earned a grade that was below 80?

 

Question-4: (20 marks)

  1. (4 marks) Solve the following equations:
  2. 6 (x – 4) = 7 (x + 2)
  3. 2 (x – 4) = + 3

 

  1. (16 marks) This question is based on unit 6:
  2. Calculate the slope of the line, which passes through (3,2) and (-1,10)

 

  1. Find the equation of the line described in part a.
  • Find the x-intercept and y-intercept of the line described in part a.
  1. Draw the graph.

 

Question-5: (20 marks)

 

  1. Use Microsoft Excel in drawing a circle graph to represent the following expenditures of a family with an annual income of $42,000.

 

  1. Explain your results in 40-50 words.

 

Housing $12,000
Food $9,000
Clothing $1,500
Transportation $3,000
Tourism $7,500
Insurance $2,700
Utilities $1,800
Savings $4,500

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MU123 discovering mathematics مدرس

Posted on by Posted in homework

لطلاب الجامعة العربية المفتوحة وحل واجب   MU123 أستاذ جامعي لتدرس

TMA mu123 discovering mathematics

TMA حل واجبات الجامعة العربية المفتوحة

MU123 (Discovering Mathematics)

Tutor Marked Assignment (TMA)

2013-2014, Second semester

 

This TMA is based on Units 1, 2, 3, 4 and 11, MU123Discovering Mathematics. It is marked out of 100 and is worth 20% of the overall assessment component. This TMA requires the students to apply course concepts that deal with working with numbers, percentages, ratios, statistical concepts and pictures.

 

The TMA is intended to:

  • Apply how to use the statistical measurements and interpret the results.
  • Develop your skills of classification of statistical analysis.

 

The TMA:

The following table describes the estimated population of the Arab states at year 2013.

 

Country Estimated population
Algeria 38,295,000
 Bahrain 1,546,000
 Comoros 743,000
 Djibouti 912,000
 Egypt 84,605,000
 Iraq 35,404,000
 Jordan 6,517,000
 Kuwait 3,852,000
 Lebanon 4,127,000
 Libya 6,323,000
 Mauritania 3,461,000
 Morocco 32,950,000
 Oman 3,942,000
 Palestine 4,421,000
 Qatar 1,917,000
 Saudi Arabia 30,193,000
 Somalia 9,662,000
 Sudan 35,150,000
 Syria 22,169,000
 Tunisia 10,889,000
 United Arab Emirates 8,659,000
 Yemen 25,252,000

 

From theabove table, answer the following 9questions showing your calculation.

 

  1. Calculate the mean, median, range and interquartile range. (10 points)

 

  1. Calculate the standard deviation (use the same steps you learned in your course. (10 points).

 

  1. Find the percentage of the population of each country to the total population.(do your calculations only for the first five countries listed in the table) (10 points)

 

  1. Round the estimated population for the last five countries to three significant numbers. (10 points)

 

  1. What fraction of the population of Gulf Cooperation Council to the total of Arab States population? Give your answer in its simplest form. (10 points)

 

  1. If the total population of Arab countries is estimated to increase to 380 million in one year, what is the percentage increase of the total population? Show how you calculated it. (10 points).

 

  1. If the world population is estimated as 6,908,688,000 what is the ratio of the Arab state population to the world population? (10 points)

 

  1. Explain your results found in question 1, what did you learn from your results? (40-50 words). (10 points)

 

  1. Use Microsoft Excel in presenting the above data in bar charts. Explain your resultsin 40-50 words. (10 points)

 

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