Answer:
a
Step-by-step explanation:
When faced with potential outliers, statisticians sugges to run the analysis with and without the outliers and compare the results. Your finding would be more trustworthy and valueable.
Answer: Sound waves entering a warmer air means that the kinetic energy of the air particles will increase and thus the vibration of particles will be increased and thus the speed of transmission of sound waves increases.
Step-by-step explanation:
Answer: 1.12
Step-by-step explanation:
The confidence interval for the mean 
and margin of error E is given by :-
--------------(1)
The given confidence interval : (0.21, 2.45) -------------(2)
From (1) and (2), we have
Subtract equation (3) from (4), we get
Hence, the margin of error is 1.12 .
Answer:
y=4x+7
Step-by-step
(-2,1) and (1,-11)
1)Rule you should use is run over rise aka slope
y²-y^1=
x^2-x^1=
(-11)-1=12
1-(-2)=3
12/3=4
slope =4
2)Rule of point slope intercept
y - y1 = m(x - x1)
y+1=4(x+2)
y+1=4x+8
-1 -1
y=4x+7
