3 years ago

Hate math to be honest

Mathematics

2 answers:

KatRina [158]3 years ago

3 0

Could you take a little bit clear picture? :)

NeTakaya3 years ago

3 0

The correct answer would be A

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Step-by-step explanation:

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180 - (53+45) = 98

Then two lines adapt to 180 degrees

therefore, 180 -98 = 82

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Step-by-step explanation:

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An article in Knee Surgery, Sports Traumatology, Arthroscopy, "Arthroscopic meniscal repair with an absorbable screw: results an

igomit [66]

Answer:

Mean = 1.57

Variance=0.31

Step-by-step explanation:

To calculate the mean and the variance of the number of successful surgeries (X), we first have to enumerate the possible outcomes:

1) Both surgeries are successful (X=2).

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2) Left knee unsuccessful and right knee successful (X=1).

$P(e_2)=(1-0.9)*0.67=0.1*0.67=0.067$

3) Right knee unsuccessful and left knee successful (X=1).

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4) Both surgeries are unsuccessful (X=0).

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Then, the mean can be calculated as the expected value:

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The variance can be calculated as:

$V=\sum p_i(X_i-\bar{X})^2\\\\V=0.603(2-1.57)^2+(0.067+0.297)*(1-1.57)^2+0.033*(0-1.57)^2\\\\V=0.603*0.1849+0.364*0.3249+0.033*2.4649\\\\V=0.1115+0.1183+0.0813\\\\V=0.3111$

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Step-by-step explanation:

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jasenka [17]

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This is what the answer is :)

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