B. 4(4a+5)
4 would multiply all what’s in the bracket
16a +20
Answer:
Sample Variance = 6.008
Sample standard deviation = 2.451
Step-by-step explanation:
We are given the following in the question:
10.6, 12.6, 14.8, 18.2, 12.0, 14.8, 12.2, 15.6
Formula:
where are data points, is the mean and n is the number of observations.
Sum of squares of differences = 42.06
Standard Deviation =
You should know that 10.75 is equal to 1075/100 so now you can simplify it and you will have:
1075/100 = 215/20 = 43/4 and that is the simplest form :)))
I hope this is helpful
have a nice day
100-97
20-17
hear you go hope it helps