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2 years ago

Don't guess!

Mathematics

2 answers:

Alja [10]2 years ago

7 0

Answer:

The correct answer would be J; $\frac{1}{2} r + 2$ ;

Step-by-step explanation:

Using the algebra;

$\frac{1}{2} * r$ = $\frac{1}{2} r$

$\frac{1}{2} * 4 = 2$

Altogether this would give "J" as the answer.

Hope this helps!

lions [1.4K]2 years ago

6 0

Answer:

Step-by-step explanation:

1/2(r+4) you distributing 1/2 to r and 4

Which basically divides them in half

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Urn 1 contains 3 blue tokens and 2 red tokens; urn 2 contains 2 blue tokens and 4 red tokens. All tokens are indistinguishable.

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P( Urn 1 ) = 2/6 = 1/3

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Urn 1 contains : 3 blue and 2 red

P( blue | urn 1 ) = 3/5 ( with replacement ) , P( blue | urn 1 ) = 3/4 ( without replacement )

P( red | urn 1 ) = 2 / 5 ( with replacement ) , P(red | urn 1 ) = 1/2 ( without replacement )

Urn 2 contains : 2 blue and 4 red

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Determine

<u>i) Possible outcomes when two tokens are drawn from either Urn without replacement </u>

RR = [[ ( 2/5 * 1/3 ) + ( 2/3 * 2/3 ) ] * [( 1/2 * 1/3 ) + ( 4/5 * 2/3 ) ]] = 0.4

RB = [[ (2/5 * 1/3 ) + ( 2/3 * 2/3 ) ] * [ ( 3/4 *1/3 ) + ( 2/5 * 2/3 ) ]] ≈ 0.3

BB = [[ ( 3/5 * 1/3 ) + ( 1/3 * 2/3 ) ] * [ ( 3/4 *1/3 ) + ( 2/5 * 2/3 ) ]] ≈ 0.22

BR = [[ ( 3/5 * 1/3 ) + ( 1/3 * 2/3 ) ] * [ ( 1/2 * 1/3 ) + ( 4/5 * 2/3 ) ]] ≈ 0.30

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2 years ago