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Jonah58
26.09.2019 •
Mathematics
The speed of nitrogen molecules in the atmosphere (at 20ºc) follows a normal distribution with a mean speed of 500 meters/second and a standard deviation of 50 meters/second. which conclusion does this information best support?
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Ответ:
Ответ:
Step-by-step explanation:
Given that the speed of nitrogen molecules in the atmosphere (at 20ºC) follows a normal distribution with a mean speed of 500 meters/second and a standard deviation of 50 meters/second.
i.e. we get that 68% lie within 1 std deviation from the mean
ie 68%lie between 450 and 550
95% lie between 400 and 600 and
almost 100% lie between 350 and 650
Ответ:
-12x < -12
Divide both sides by -12 and because you are dividing by a negative number you need to reverse the inequality sign.
The answer becomes x > 1