In 2009 the life expectancy is about 80 life expectancy gains 5.7 years every decade. From 2009 in how many years would humanity
1 answer:
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Step-by-step explanation:
quotient is 40 and remainder is 8
Answer:
Because a bracket is used, the solution includes
The solution includes numbers from negative infinity to
Step-by-step explanation:
we know that
If the solution for an inequality is (–∞, 6.5]
then
The solution is all real numbers less than or equal to
so
Because a bracket is used, the solution includes
The solution includes numbers from negative infinity to
Answer:
And we can find the limits in order to consider values as significantly low and high like this:
Step-by-step explanation:
Previous concepts
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
Solution to the problem
For this case we can consider a value to be significantly low if we have that the z score is lower or equal to - 2 and we can consider a value to be significantly high if its z score is higher tor equal to 2.
For this case we have the mean and the deviation given:
And we can find the limits in order to consider values as significantly low and high like this: