Answer:
a) For this case we can use the definition of weighted average given by:
And if we replace the values given we have:
b)
c)
Step-by-step explanation:
Assuming the following question: "One sample has a mean of M=8 and a second sample has a mean of M=16 . The two samples are combined into a single set of scores.
a) What is the mean for the combined set if both of the original samples have n=4 scores
"
For this case we can use the definition of weighted average given by:
And if we replace the values given we have:
b) what is the mean for the combined set if the first sample has n=3 and the second sample has n=5
Using the definition we have:
c) what is the mean for the combined set if the first sample has n=5 and the second sample has n=3
Using the definition we have:
What are the answers for the nonshelaunt question
Answer:
C
Step-by-step explanation:
we know that
In a right triangle
The cosine of an angle x is equal to
cos(x)=\frac{adjacent\ side\ angle\ x}{hypotenuse}
The sine of an angle x is equal to
sine(x)=\frac{opposite\ side\ angle\ x}{hypotenuse}
The tangent of an angle x is equal to
tan(x)=\frac{opposite\ side\ angle\ x}{adjacent\ side\ angle\ x}
therefore
the answer is the option C
Answer:
9^6=531441
Step-by-step explanation:
To calculate ,on the Scientific calculator
-First press 9 marked on the set of numbers.
--Then go to the indices expression and press on it.
--After that press 6.
--You will get the value of 9^6=531441
-2 -10 -3
-7 0 -8
-6 -5 -4
That's the square, it was a fun puzzle :)