Answer:
83.85%
Step-by-step explanation:
We will use the empirical rule. For a standard normal distribution the mean is equal to 0 and the standard deviation is equal to 1. Then, between 3 standard deviations below the mean, we have 2.35% + 13.5% + 34% = 49.85% of data, and 1 standard deviation above the mean we have 34% of data. Therefore, the percentage of data that are between 3 standard deviations below the mean and 1 standard deviation above the mean is 49.85%+34% = 83.85%.
Answer:
1,200 out of 2000 doctors use X aspirin
Step-by-step explanation:
Answer:
x = 1
Step-by-step explanation:
13x - 12 = 7x -6
6x = 6
x = 1
Answer:

Step-by-step explanation:
we have

This is the equation of a line in slope intercept form
where
---> the slope
----> the y-intercept
we know that
If the given line was shifted down 7 units, then the new y-intercept is equal to

The slope of the new line will be the same that the original line, because are parallel lines
so
The new equation is
