Answer:
Test statistic,
(to 3 dp)
Step-by-step explanation:
Deviation, d = x -y
Sample mean for the deviation


Standard deviation: 


SD =2.93
Under the null hypothesis, the formula for the test statistics will be given by:


Answer:
5x+10
Step-by-step explanation:
Hope this helps!!! :))
The coefficient of y∧15×∧2 in expansion of (y∧3+x)∧7 is (15×2)+(3×7)= 51
Answer:
24
Step-by-step explanation:
4xy
4(2)(3)
24
Answer:
0.5
Step-by-step explanation:
0.47058824
the 4 is in the tenths place
the 7 makes it turn to a 5