Answer:
A. True
Step-by-step explanation:
The empirical rule in statistics states that:
- 68% of the data will be within 1 standard deviation
- 95% of the data will be within 2 standard deviations
- 99.7% of the data will be within 3 standard deviations
So yes, we can state that 5% or less of the data will be more than 2 standard deviations away from the mean. Of course, statistics is not 100% certain, so this rule is not 100% right all the time. Some exceptions might result, but generally speaking, the results should follow the empirical rule.
<h3>
Answer: -0.81</h3>
Work Shown:
z = (x - mu)/sigma
z = (71 - 74)/(3.7)
z = -0.8108 approximately
z = -0.81
If you would like to know how many dollars did Jimmy receive, you can calculate this using the following steps:
11.1 Pesos ... $5.30
42.7 Pesos ... $x = ?
11.1 * x = 5.30 * 42.7 /11.1
x = 5.30 * 42.7 / 11.1
x = $20.39
The correct result would be $20.39.
Answer:
The solution of the given system of equations is 'x= 15 and y= -24'.
Step-by-step explanation:
We are given the inequalities,
x + y = -9
2x + y = 6
To find the solution graphically, we will draw the graphs of both the equation.
Then, the point at which the graphs intersect will be the required solution.
As we can see from the graphs plotted of the equations,
x + y = -9
2x + y = 6
That, they intersect at the point ( 15,-24 ).
Thus, the solution of the given system of equations is 'x= 15 and y= -24'.
40% percent times 70 is want I believe
