### Math 10 Chapter 4 - Part B 1. Arithmetic mean (A.M) = ` x = ___________. a) åx /Y b) åx /Z c) åx /x 2. For the data containing add numbers of item |x| the median is calculated as the _________ items. a) (n + 1/3)th b) (n + 1/2)th c) (n + 1/1)th d) (n + 2/2)th 3. In x = åfx/åf | f| stands for ___________ a) Velocity b) Amplitude c) Wavelength d) Frequency 4. To find Arithmetic means of group data the formula x = _______________. a) åfx/åf b) åfx/åY c) åfx/åX 5. To find arithmetic mean of grouped date the formula of coding method is x = a) c + åfu/& b) b + åfu/& c) A + åfu/åf xh 6. The data directly collected from its source is called primary data. a) False b) True 7. Some specific values in a data is known as discrete variable. a) False b) True 8. Any fixed quantity that has double value is known as constant. a) True b) False 9. Any characteristic whose value are always same from one individual to another is knows as variable. a) False b) True 10. Class mark is the mid point of any class. a) True b) False 11. A person who collect the data is knows as teacher. a) False b) True 12. Number of occurrence of an item corresponding to class interval is called class frequency a) True b) False 13. In class (50 | 52), 50o is the upper limit. a) False b) True 14. The most common value of the data is mode. a) True b) False 15. Pie-diagram is also known as Histogram. a) True b) False 16. Mid point of any class in difference between the upper and lower limits. a) True b) False 17. Median for grouped data is obtained by the formula Median = l + h/f (n/2| c) a) True b) False 18. Size of class interval is knows as frequency of the class. a) True b) False 19. Variance is the square root of standard deviation. a) False b) True 20. Measure of central tendency is commonly known as average. a) True b) False

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