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bulgar [2K]
3 years ago
14

Assume the random variable X is normally​ distributed, with mean of 50 and a standard deviation of 9. Find the 9th percentile.

Mathematics
1 answer:
vovangra [49]3 years ago
7 0

Answer:

37.94

Step-by-step explanation:

the 9th percentile is equal to a zscore of -1.34

-1.34=(x-50)/9

x=37.94

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If f(1) = 10, what is f(3)?
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4 0
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how do you solve -2.8k-4.31=-15.79 or 1.9m-3=-12.31 or 2.1a+1.4=-14.245 or 3.8n-4.8=-21.9 ?
Effectus [21]
Consider posting each question separately, please.

Given   <span>-2.8k-4.31=-15.79 :

1) Isolate the "k" term on the left by adding 4.31 to both sides of this equation.
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bija089 [108]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Caroline places five poles A,B,C,D,and E in order along a straight line. The distance poles A and D is 1 yard. The distance betw
hodyreva [135]
We have
------------------------------------------------------------------
A              B                C                  D                  E 
----------------------------------------------- 
                    1 yard 
--------------  
 1/5 yard                                           ------------------ 
                                                              7/10 yard
<span>The distance poles B and D= (1-1/5)=4/5 yard

</span>The distance poles B and E= BD+DE=4/5+7/10=(8+7)/10=15/10=3/2 yard

the answer is 3/2 yard (distance poles B and E)
8 0
3 years ago
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