Answer:
Between 38 and 86 months.
Step-by-step explanation:
Chebyshev Theorem
The Chebyshev Theorem can also be applied to non-normal distribution. It states that:
At least 75% of the measures are within 2 standard deviations of the mean.
At least 89% of the measures are within 3 standard deviations of the mean.
An in general terms, the percentage of measures within k standard deviations of the mean is given by
.
In this question:
Mean of 62, standard deviation of 12.
Between what two lifetimes does Chebyshev's Theorem guarantee that we will find at least approximately 75% of the computers?
Within 2 standard deviations of the mean, so:
62 - 2*12 = 38
62 + 2*12 = 86
Between 38 and 86 months.
X = √3 * ( 1 / cos(60°) ) = 2√3
y = √3 * tan(60°) = 3
hope I helped.
Answer:
Step-by-step explanation:
0.2³ + (1/5 × 3/4) - 1/12
According to my syllabus, we use BODMAS. i.e <em>Brackets, Of, Division, Multiplication, Addition </em>and <em>Subtraction</em> in that order.
0.2³ + 3/20 - 1/12
0.008 + 3/20 - 1/ 12
Change the decimal to a fraction and work out the rest.
Answer:
The answer is H
Step-by-step explanation:
Next time pls ask real question
Answer:
(4,-7)
Step-by-step explanation:
-w=(5,-3)
-z=(-1,-4)
so -w-z=(5-1,-3-4)