PART I: WRITE TRUE FOR CORRECT STATEMENTS AND FALSE FOR THE INCORRECT ONES. (10 Points) PART II: MATCH THE RESPONSES UNDER "B" TO THE PREMISES UNDER "A" (20 Points) PART III: CHOOSE THE BEST ANSWER AMONG THE ALTERNATIVES AND WRITE THE LETTER OF YOUR CHOICE ON THE SPACE PROVIDED. (30 Points)

እነሆ መልሶቹ:

ክፍል I: ለትክክለኛ መግለጫዎች እውነት (TRUE) እና ለስህተት መግለጫዎች ሐሰት (FALSE) ይጻፉ። (10 ነጥቦች)

1. Inferential Statistics is the branch of statistics that involves drawing conclusions about a population based on information contained in a sample taken from that population.
   • TRUE (ይህ የ Inferential Statistics ትክክለኛ ፍቺ ነው።)
2. Census is the method or process of selecting sample from the population.
   • FALSE (የሕዝብ ቆጠራ (Census) ማለት ከጠቅላላው ሕዝብ ውስጥ መረጃ መሰብሰብ እንጂ ናሙና መምረጥ አይደለም።)
3. Recorded information in its original collected form, whether it will be counts or measurements, is referred to as raw data.
   • TRUE (ይህ የጥሬ መረጃ (raw data) ትክክለኛ ፍቺ ነው።)
4. The type of graph used to represent data is determined by the type of data collected and by the researcher's purpose.
   • TRUE (የግራፍ አይነት የሚወሰነው በተሰበሰበው የመረጃ አይነት እና በምርምሩ ዓላማ ነው።)
5. An arrangement of objects without regard to order is called Permutation.
   • FALSE (ትዕዛዝን ከግምት ውስጥ ሳያስገባ የነገሮች ዝግጅት Combination ይባላል እንጂ Permutation አይደለም። Permutation ትዕዛዝን ግምት ውስጥ ያስገባል።)

ክፍል II: በ"B" ስር ያሉትን ምላሾች በ"A" ስር ካሉት ግቢዎች ጋር ያዛምዱ። (20 ነጥቦች)

1. The result of a single trial $\rightarrow$ H. Outcome
2. Generating an outcome $\rightarrow$ J. Experiment
3. Subset of the sample space $\rightarrow$ A. Event
4. An event having single element $\rightarrow$ I. Elementary event
5. Cannot happen at the same time $\rightarrow$ F. Mutually Exclusive Events
6. The same chance of occurring $\rightarrow$ G. Equally Likely Events
7. Harmonic Mean $\rightarrow$ B. Average of distance/speed/motion
8. Positively skewed distribution $\rightarrow$ D. Majority of the observations have a value below the mean
9. Mesokurtic $\rightarrow$ C. Not very high peaked or flat-topped distribution
10. Coefficient of Variation $\rightarrow$ E. The ratio of mean to the standard deviation (ማስታወሻ: የ Coefficient of Variation ትክክለኛ ቀመር የ standard deviation እና mean ጥምርታ ነው። እዚህ ላይ የተገለጸው የተገላቢጦሽ ነው። ነገር ግን ከቀረቡት አማራጮች ውስጥ በጣም ቅርብ የሆነው ይህ ነው።)

ክፍል III: ከቀረቡት አማራጮች ውስጥ ምርጡን መልስ ይምረጡ። (30 ነጥቦች)

1. Researchers are using descriptive statistics if they are using their results to:
   • D. Describe the data they actually collected. (Descriptive statistics የተሰበሰበውን መረጃ ለመግለጽ ያገለግላል።)
2. A researcher is interested in the travel time Rift Valley University students to college. A group of 50 students is interviewed. Their mean travel time in 16.7 minutes is an example of a(n):
   • B. Statistic (ከናሙና (sample) የተገኘ መለኪያ ስታቲስቲክስ (statistic) ይባላል።)
3. Statistical techniques that summarize and organize the data are classified as:
   • C. Descriptive statistics (መረጃን የሚያጠቃልሉ እና የሚያደራጁ ስታቲስቲካዊ ዘዴዎች Descriptive statistics ይባላሉ።)