Answer:
b
Step-by-step explanation:
Solution: A distribution consists of three components with frequencies 45 ,40 and 15 having their means 2,2.5 and 2 respectively . find combined mean
Answer: Let
be the mean of first component and
be the frequency of first component
Let
be the mean of second component and
be the frequency of second component
Let
be the mean of third component and
be the frequency of third component
Then we have:



Now the combined mean is:
Combined mean 



Therefore, the combined mean is 2.2
You can solve this by multiplying 261.46 by 2/3.
261.46*2/3=174.306
9514 1404 393
Answer:
yes
Step-by-step explanation:
A table is a 3-D object. It makes no sense to talk about reflecting it across a point or line. If the table is reflected across a vertical plane, the top will remain "up" and the legs will remain "down".
A glide reflection across a vertical plane <em>will</em> result in a functioning table.
Answer:3 drinks
Step-by-step explanation: