We weere taking samples that were too large for the population too biased
You Will Add Up All The Number Then Divide By The Total Number You Have In All
The Mean Is 185
You Put All The Number In Order For The Median
140,167,185,188,193,195,200,212
So You Have Two Number Which Are 188 and 195
You Will Add 188 + 195=383
Now You Divide 383 By 2 Which Is 191.5
<h2>
Answer:</h2>
The answer is 25 minutes
<h2>
Step-by-step explanation:</h2>
As we see the median time given in minutes before the installation was 53 minutes and after the installation it became 28 so by taking the difference which is 53 - 28 gives us 25 minutes.
2(-11)-19
-22-19
-41
D is the answer