Question 10 Evaluate the expression: 8 O 40,320 0 56 O None of the above Questio

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Question 10 Evaluate the expression: 8 O 40,320 0 56 O None of the above Question 11 Evaluate gP3 O 336 O 15 0 56 O None of the above Question 12 Evaluate 10C3 360 O 120 720 O none of the above Question 13 ldentify the sampling technique used to obtain the sample. Every 15th CD player coming off an assembly line is checked for defects. O Random O Systematic O Stratified O Cluster Question 14 ldentify the sampling technique used to obtain the sample. A door prize is given away at a convention. Tickets are placed in a bin and tickets are mixed up. Then a ticket is selected by a blindfolded person. O Random O Systematic O Cluster O Stratified

Explanation / Answer

Solution: 10) 8!=8*7*6*5*4*3*2*1= 40,320

Hence the correct answer is 40,320.

11) P(8,3)= 8!/(8-3)!= 8!/5!= 8*7*6= 336

Hence, the coprrect answer is 336.

12) C(10,3)= 10!/3!*(10-3)!= 10!/3!*7!= 10*9*8/3*2= 120

Hence, the correct answer is 120.

13) b) Systematic sampling

14) a) Random Sampling

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