10.2
7
-32
z - 7Example: if z = 20z - 7 = 20 - 7 = 13
The one-tailed z-value is: P(Z < z) = 0.9693 => z = 1.8706
If ' z ' is greater than ' 1 ', then ' z ' is. If ' z ' is less than ' 1 ', then ' 1 ' is.
7
-32
To express "32 is the sum of a number z and 9" as an equation, you can write it as: ( z + 9 = 32 ). This equation states that when you add the number ( z ) to 9, the result equals 32. You can also rearrange it to solve for ( z ) by subtracting 9 from both sides, resulting in ( z = 32 - 9 ).
If: z -31 = 64 then the value of z is 95
z - 7Example: if z = 20z - 7 = 20 - 7 = 13
Without an equality sign and not knowing the plus or minus value of 81 it can't be solved. If you mean: z+81 = 9z-7 Then: z-9z = -7-81 => -8z = -88 By dividing both sides by -8: z = 11
7 pounds
add 7 to z
The one-tailed z-value is: P(Z < z) = 0.9693 => z = 1.8706
Z is a constant variable in this equation. A constant variable is a variable, the value of which can never change. In this case, z would be equal to 7.
Z=z
If the value given in the table for Z = z is k: that is, pr(Z > z) is 1 - k, then the two-tailed probability of observing a value which is at least as extreme, ie Pr(|Z| > z) is 0.5*(1-k).