<span>20 + 30 × 1
= </span><span>20 + 30
= 50</span>
So b^2 is the sqaure of b.
so b^2 - 3
Answer:
Step-by-step explanation:
Given is the graph bell shaped.
We have to find the variance of the data
We see that the graph looks like a normal distribution curve symmetrical about x=19
Hence mean =19
Since we know maximum area covered within 3 std deviations on either side of mean, we can calculate 6 sigma value from the graph
Extreme left x value = 14 and right = 24
Hence 6 times std dev =24-14 =10
So std deviation = 10/6 =5/3
Variance = 25/9
Answer:
its is 1 my man or woman not
Step-by-step explanation: