A women from England sneezed 978 days in a row. About how many weeks did sh sneeze in a row? What units of time do you need to c
1 answer:
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Solution:
Perimeter is the sum of the figure's sides.
<u>Note that:</u>
- 10 + 10 + 4 + 10 + 4 + 10 + 10 + 30 = Perimeter of figure
<u>Simplify the expression:</u>
- 5(10) + 2(4) + 30 = Perimeter of figure
- => 50 + 8 + 30 = Perimeter of figure
- => 88 cm = Perimeter of figure
Answer:
represent the mean and,
represent the deviation
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 a random variable distributed normally. For this case we just need to conditions in order to satisfy a standard normal distribution
represent the mean and,
represent the deviation
On this case we say that is a normal standard distribution.