A club elects a president, vice president and secretary treasurer. How many sets of officers are possible if there are 8 members
2 answers:
<em>Ahhh yes, the time-honored permutations.</em>
<em>The permutation format, to start with, is P(n, r).</em>
<em>The formula is:</em>
<h3><em /><em>In this instance, we have P(8, 3).</em>
<em>8 will go in for n and 3 for r. So now let's solve.</em>
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<em>Therefore 336 is our answer. I hope this answers your question.</em>
<em>-Toremi</em>
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Answer:
The 33 week gestation period baby has a zscore of -0.47.
The 41 week gestation period baby has a zscore of -0.94.
The 41 week gestation period baby weighs less relative to the gestation period.
Step-by-step explanation:
Normal model problems can be solved by the zscore formula.
On a normaly distributed set with mean and standard deviation
, the z-score of a value X is given by:
The zscore represents how many standard deviations the value of X is above or below the mean . This means that the baby with the lowest Zscore is the one who weighs relatively less to the gestation period.
33 week gestation period baby:
Babies born after a gestation period of 32 to 35 weeks have a mean weight of 2700 grams and a standard deviation of 900 grams, so .
A 33-week gestation period baby weighs 2275 grams. So .
41 week gestation period baby:
Babies born after a gestation period of 40 weeks have a mean weight of 3200 grams and a standard deviation of 450 grams, so
A 41-week gestation period baby weighs 2775 grams, so .
The 41 week gestation period baby weighs less relative to the gestation period, since he has a lower zscore.
For the general case, the n-gon, you got 
degrees. The 13-gon thus has 1980 degrees in total.