The _____ measures your level of education.
1 answer:
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Answer:
a)
And we can find this probability using the normal standard table and we got:
b)
And we can find this probability using the complement rule and the normal standard table and we got:
Step-by-step explanation:
Previous concepts
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".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:
Where and
Part a
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability using the normal standard table and we got:
Part b
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability using the complement rule and the normal standard table and we got:
Answer:
(For the first two questions I do believe that you will need a protractor to calculate the angles.)
15) measures out to -70° in order to display that the angle would be in quadrant IV (the bottom right quadrant.)
The first image attached shows where the angle should be located.
16) is equal to 60° (the line you draw will be in quadrant 1 (the top right quadrant))
17) 350° is or 6.11 (the answer depends on the format the professor wants.)
18) 240° is radians or -4.19 (I am rounding to the nearest hundredths place the unsimplified answer is −4.18879020...)
