The 4 is in the hundred thousands place hope i helped
Answer:
a
![\= x = 82](https://tex.z-dn.net/?f=%5C%3D%20x%20%20%3D%20%2082%20)
b
![s = 9.64](https://tex.z-dn.net/?f=s%20%3D%20%209.64%20)
Step-by-step explanation:
From the question we are told that
The data is 87 91 86 82 72 91 60 77 80 79 83 96
Generally the point estimate for the mean is mathematically represented as
![\= x = \frac{\sum x_i }{n}](https://tex.z-dn.net/?f=%5C%3D%20x%20%20%3D%20%20%5Cfrac%7B%5Csum%20%20x_i%20%7D%7Bn%7D)
=> ![\= x = \frac{87 +91 + 86 + \cdots + 96}{12}](https://tex.z-dn.net/?f=%5C%3D%20x%20%20%3D%20%20%5Cfrac%7B87%20%2B91%20%2B%2086%20%2B%20%5Ccdots%20%20%2B%2096%7D%7B12%7D)
=>
Generally the point estimate for the standard deviation is mathematically represented as
![s = \sqrt{\frac{ \sum ( x_i - \= x )^2 }{ n -1 } }](https://tex.z-dn.net/?f=s%20%3D%20%20%5Csqrt%7B%5Cfrac%7B%20%5Csum%20%28%20x_i%20%20-%20%5C%3D%20x%20%29%5E2%20%7D%7B%20n%20-1%20%7D%20%7D)
=> ![s = \sqrt{\frac{ ( 87 - 82 )^2 +( 91 - 82 )^2 + \cdots + ( 96 - 82 )^2 }{ 12 -1 } }](https://tex.z-dn.net/?f=s%20%3D%20%20%5Csqrt%7B%5Cfrac%7B%20%28%2087%20-%2082%20%20%29%5E2%20%2B%28%2091%20-%2082%20%20%29%5E2%20%2B%20%5Ccdots%20%2B%20%28%2096%20-%2082%20%20%29%5E2%20%20%7D%7B%2012%20-1%20%7D%20%7D)
=> ![s = 9.64](https://tex.z-dn.net/?f=s%20%3D%20%209.64%20)
The verbal expression for 2m is two meters
Answer:
it increase and by 16.7
Step-by-step explanation:
Answer: y=7
x=5
Step-by-step explanation: