CSEE form four NECTA geography (statistics) review questions.

CSEE form four NECTA geography (statistics) review questions

QUESTION ONE

Data in the following table show the enrolment of form one student at mji mpya secondary school from 2006 to 2010. Carefully study  them and answer the questions that follow

year20062007200820092010
Number of students220200150180205

(a)    Present the data by using a simple bar graph

(b)   Comment on the trend of enrolment

(c)  Explain the advantages of the methods used in (a) above

QUESTION TWO

State the difference between the following types of data

(a) Discrete and continuous

(b)   Single and grouped

QUESTION THREE

Read carefully the hypothetical data presented below and then answer the questions that follow. Cash crops production in Tanzania in ‘000’ tons

YearTypes of cash crops
coffeecottontea
1990200100300
1991150130200
1992120100100

(a)    Represent data above using compound bar graph

(b) How the compound bar graph is is of value to you? Give three points

(c)  Comment on the trend of production as observed from the graph

QUESTION FOUR

Read carefully the climatic data for station A presented in the table and answer the question that follow

monthJFMAMJJASOND
Temperature in 0C26.626.626.626.626.626.627.727.728.328.327.727.7
Rainfall in mm23322824421511891363651104140196

  I. Describe the climatic condition of station A      

II.      Name any two countries in the great lakes of East Africa which experience this type of climatic condition    

III.  Present the data graphically

QUESTION FIVE

Study the following data showing the production of Irish potatoes  in thousands (‘000’) tonnes in three villages in Tanzania from 2000 to 2002 then answer the question that follows

yearPotato production
sungamwaluguluMpera
200020155
2001401510
2002502010

(a)  Construct a compound bar graph to show the production of Irish potatoes in the three villages

(b)   Give three advantages and two disadvantages of the compound bar graph

(c) Suggest any other three methods which could be used to present the data provided in the table

QUESTION SIX

Classify the nature of geographical data      

II.   The geography teacher of mtakuja secondary school obtained the following scores after marking the annual examinations of his students; 36,43,48,68,70,19,49,30,51,18,51,58,72,51,61,41,51,26

a)  Find the median of the score

b)  Calculate the arithmetic mean

c)  Determine the mode of the score    

III.   Show the significance of the arithmetic mean in geographic data

QUESTION SEVEN

Carefully study the hypothetical data provided below showing the exports of crops from Tanzania. The exports of crops in tonnes

YearclovessisalCotton
1990400035007000
1991250020004500
1992350015006000
1993600010008500
1994650015009000

(a)    Present the data using compound bar graph (b)   Explain two advantages and disadvantages of compound bar graph

QUESTION EIGHT

(a)    Explain the meaning of standard deviation

(b)   Study the following data showing the age of primary school pupils at tumaini primary school and answer the question that follow; 15,8,7,6,12,5,14 and 13

I.     Determine the range and median of the age of students

II.  Calculate the standard deviation

QUESTION NINE

The table below shows agricultural production in Tanzania from 2000 to 2003 in thousands (‘000’) tons

CROPS2000200120022003
MAIZE65356070
TOBACCO25302025
COFFEE50604545

(a)    Present the data by using grouped bar graph (b)   Comment on the nature of production  

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