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
Ratios can be written as fractions
24:28 = 24/28...this can reduce to 6/7....as a ratio 6:7
if that is not an answer choice, then any fraction that is equivalent to 24/28, written as a ratio will be ur answer
Answer:
Thank You
Step-by-step explanation: