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emmainna [20.7K]
2 years ago
8

What is the variance for this activity? activity a m b t es ef ls lf 7 1 1.5 2 1.50 8 9.50 8 9.50

Mathematics
1 answer:
Lina20 [59]2 years ago
8 0

The variance for this activity  is  mathematically given as

Var=0.026  

<h3>What is the variance for this activity?</h3>

A data set's variance may be seen as a measurement of the spread that exists between the individual integers. When evaluating the asset allocation of a portfolio, investors employ an expression known as the variance equation.

After careful consideration of the  table given in the question, we have that

Pessimistic time tp=2

optimistic time to=1

most likely time tm=1.5

Generally, the equation for variance is  mathematically given as

\sigma^2=\frac{tp-to}{6}^2

Therefore

\frac{2-1}{6}^2\\\\\sigma^2=1/6^2

Var=0.026  

In conclusion,  the variance for this activity

Var=0.026  

Read more about variance

brainly.com/question/14116780

#SPJ4

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Answer:

Cos x = \frac{base}{hypotenuse}=\frac{\sqrt{3} }{2}

Tan x = \frac{perpendicular}{base} = \frac{1}{\sqrt{3} }

Step-by-step explanation:

Sin x = \frac{perpendicular}{hypotenuse} = \frac{1}{2}

So, Perp = 1 and hyp = 2

<em>Putting this in Pythagorean theorem to get the base</em>

c^2 = a^2+b^2

a^2 = c^2-b^2

base ² = 4-1

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<em>Taking square root on both sides</em>

Base = \sqrt{3}

Now

Cos x = \frac{base}{hypotenuse}=\frac{\sqrt{3} }{2}

Tan x = \frac{perpendicular}{base} = \frac{1}{\sqrt{3} }

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