Answer:
(a)
(b)
B. The sample is too small to make judgments about skewness or symmetry.
Step-by-step explanation:
Given:
Solving (a):
First, calculate the difference between the recorded TBBMC for both operators:
The last row which represents the difference between 1 and 2 is calculated using absolute values. So, no negative entry is recorded.
The mean is then calculated as:
Next, calculate the standard deviation (s).
This is calculated using:
So, we have
Solving (b):
Of the given options (A - E), option B is correct because the sample is actually too small
Answer:
The square root is 6.
Step-by-step explanation:
Since it is 25% all you would have to do is mutiply it by 4 to get 160. So in conclusion 160 is the answer.
Answer:
The sum of any integer and its opposite is equal to zero. Summary: Adding two positive integers always yields a positive sum; adding two negative integers always yields a negative sum. To find the sum of a positive and a negative integer, take the absolute value of each integer and then subtract these values.
Step-by-step explanation:
Hello!
I've attached a photo for reference.
Lines A and B form straight angles, which measure 180 degrees. That means that -
m∠x + m∠y = 180°
m∠y + m∠z = 180°
m∠z + 43° = 180°
43° + m∠x = 180°
Since you're trying to find z, use the solvable equation with z in it:
m∠z + 43° = 180°
180 = z + 43
137 = z
Answer:
m∠z = 137°
