Answer:
you lost me at composite
Step-by-step explanation:
Have a good day
Slope = (y2 - y1) / (x2 - x1) = (4 - 1) / (7 - 1) = 3 / 6 = 1/2
Hence, y = (1/2)x + c
As point (1,1) passes through this line, 1 = (1/2)*1 + c
c = 1/2
As such, the answer is (d) y = (1/2)x + (1/2)
Answer:
34%
Step-by-step explanation:
Given that the distribution of daily light bulb request replacement is approximately bell shaped with ;
Mean , μ = 45 ; standard deviation, σ = 3
Using the empirical formula where ;
68% of the distribution is within 1 standard deviation from the mean ;
95% of the distribution is within 2 standard deviation from the mean
Lightbulb replacement numbering between ;
42 and 45
Number of standard deviations from the mean /
Z = (x - μ) / σ
(x - μ) / σ < Z < (x - μ) / σ
(42 - 45) / 3 = -1
This lies between - 1 standard deviation a d the mean :
Hence, the approximate percentage is : 68% / 2 = 34%