Answer:
2a + 8b
Step-by-step explanation:
Replace x with the x value solve to get the y value.
see attached picture for answers.
23,356 the answer rounded to nearest whole number
The equation to find a z score is (x- mean)/(standard deviation)
So, in this case the equation would be
(76-70)/(2.1)
For,
X=76
Mean=70
Standard Deviation= 2.1
After solving we find that the z score equals 2.85714
or
2.8571
Answer:
49% of the lights are on!