M5X Module 14-Measures of Central Tendency

The height of 6 athletes are: 1.80 m, 1.90 m, 1.85 m, 2.00 m, 2.05 m and 1.80 m. What is their mean height?  

• 1.82 m

• 1.86 m

• 1.90 m

• 1.92 m

The salaries of the employees in a department are SAR 8,000, SAR 8,500, SAR 9,000, SAR 9,500, and SAR 12,000. Calculate their mean salary.  

• SAR 9,100

• SAR 9,300

• SAR 9,400

• SAR, 9,550

The average age of 6 people in a household is 22 years. If the ages of the five people are 12 years, 16 years, 28 years, 30 years, and 42 years, what is the age of the remaining one?  

• 4 years

• 8 years

• 12 years

• 15 years

The mean age of 4 people is 21 years. The mean age of 5 people is 18 and the mean age of 3 people is 24. What is the 12 people?   

• 20.5 years

• 22.5 years

• 24.5 years

• 26 years

The average age of 7 English teachers is 42 years. One English teacher came. He is 26 years old. What is the new average age of the English teachers?   

• 56 years        

• 42 years        

• 41 years        

• 40 years        

The average age weight of 10 apprentices is 72 kg. The average weight of the five of them is 75 kg, while the average weight of the 3 of them is 68 kg. What is the average age of the remaining two?   

• 70.5 kg

• 72 kg

• 73.5 kg

• 75 kg

What is the median of the following grades? 90%, 88%, 93%, 99%, 90%, 80%, 88%

• 90%

• 88%

• 87%

• 86%

Find the median of the following temperatures: 50^oC, 58^oC, 44^oC, 36^oC, 67^oC, 69^oC    

• 44^oC   

• 50^oC

• 52^oC

• 54^oC

Find the mode of the following voltages:  12V, 15V, 12V, 10V, 12V, 15V, 18V

• 10V    

• 12V  

• 15V  

• 18V  

Find the mode of the following capacitances: 8F, 9F, 2F, 9F, 7F, 6F, 8F, 5F

• 8F       

• 8F & 9F          

• 9F       

• 5F & 9F