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Mathematics, 11.10.2019 14:30, Hellopeople233
On his way to work, a man notices that 9 of the 16 traffic lights are green. is there statistical significance to say that these traffic lights are programmed to allow ease of travel?
yes, because the results are unlikely to occur by chance.
yes, because the man encountered a high number of green traffic lights.
no, because the man didn't encounter enough traffic lights on this trip for a valid sample size.
no, because the results are likely to occur by chance.
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Mathematics, 22.06.2019 05:40, SL10355
Statements reasons 1. ab ≅ cd; ad ≅ bc 1. given 2. ac ≅ ac 2. reflexive property 3. △adc ≅ △cba 3. ? 4. ∠dac ≅ ∠bca; ∠acd ≅ ∠cab 4. cpctc 5. ∠dac and ∠bca are alt. int. ∠s; ∠acd and ∠cab are alt. int. ∠s 5. definition of alternate interior angles 6. ab ∥ cd; ad ∥ bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?
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On his way to work, a man notices that 9 of the 16 traffic lights are green. is there statistical si...
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