Answer:
 The probability that the sample mean will lie within 2 values of μ is 0.9544.
Step-by-step explanation:
Here
-  the sample size is given as 100
-  the standard deviation is 10
The probability that the sample mean lies with 2 of the value of μ is given as 
                                             
Here converting the values in z form gives

Substituting values

From z table

So the probability that the sample mean  will lie within 2 values of μ is 0.9544.
 
        
             
        
        
        
"that were...."
-For my concern, please give more detail about this question and possibly explain.
 
        
                    
             
        
        
        
The answer is
 <span>The two shipments have the same range of weights but a different mean weight.
Hope i helped </span>
        
                    
             
        
        
        
Answer:
Option (4)
Step-by-step explanation:
Equation of a line passing through a point  and with slope 'm' is,
 and with slope 'm' is,
y - y₁ = m(x - x₁)
Given → Slope 'm' = -2
Point through which the line is passing is (-1, -2)
x₁ = -1 and y₁ = -2
Therefore, equation will be,
y + 2 = -2(x + 1)
y = -2x - 2 - 2
y = -2x - 4
Option (4) is the correct option.