14. 160 people sit their driving test. 108 people took 10 or more hours of driving lessons. 29 of the people who took 10 or more hours of driving lessons failed their test 104 people passed their driving test altogether. Use this information to complete the frequency tree. P LEO +08 pass 10 or more hours of lessons fail 160 pass less than 10 hours of lessons fail 108 52 99 29 99 29 9

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A:

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Q: Which of the following is true? 12-211mod6 a. b. 23-11mod7 c. 34-5mod3 d. 33 - 31mod32 O a Ob O C

A: A congruence expression a≅b(modc) means (a-b) is divisible by c.

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A: TRUE

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A: The formula of standard deviation is:

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Q: Which of the following is true? a. 12-211mod6 b. 23-11mod7 c. 34= -5mod3 d. 33 - 31mod32 a Ob

A: A congruence expression a≅b(modm) is true iff m|(a-b)