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%
3. 8 tires for 2 cars = 4 tires for every 1 car
4. (8,2) (12,3) (16,4) (20,5) (24,6) (28,7)
↑
plot these on the graph
6. 8/2=16/4=12/3=20/5
Answer:
14
Step-by-step explanation: Multiply 56 by 75% then subtract your product from 56
Answer:
50 Notebooks
Step-By-Step:
First write an equation
3/5x
The x represent the number of notebooks that can fit within the shelf.
So 3/5(50)=30
