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Romashka-Z-Leto [24]
3 years ago
7

A bag contains eight blue marbles six red marbles and four green marbles what is the probability of selecting a red marble repla

cing it in the bag then selecting a green marble
Mathematics
1 answer:
Paha777 [63]3 years ago
7 0

Answer: \frac{2}{27}

<u>Step-by-step explanation:</u>

blue = 8  , red = 6  , green = 4  , total = 18


red     and     green

 \frac{6}{18}        x         \frac{4}{18}

= \frac{1}{3}         x         \frac{2}{9}

= \frac{2}{27}


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Process control is nothing more or less than monitoring quality as the work is being performed. Perhaps the most widely adopted
ella [17]

Answer:

a. Grand Mean = 2.799

b. Standard Deviation = 0.01387

c. Standard Error = 0.0016

d. The range with a Z score of 3 = (2.75739, 2.84061)

Step-by-step explanation:

a. Grand mean :

Given that

Sum of 80 values = 223.91

Total observation = 80

Grand mean = 223.91/80 = 2.799

b. With the excel command "STDEV[range of cells]", we get the standard deviation as = 0.01387

c. Standard error =  Standard deviation / root of n

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d. The range with a Z score of 3 :

lower limit = mean - (3 * SD) = 2.799 - (0.04161) = 2.75739

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3 years ago
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Ede4ka [16]

Answer:

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5 0
3 years ago
Rearrange the equation so u is the independent variable.<br><br> 4u+8w=-3u+2w4u+8w=−3u+2w
stiv31 [10]

Answer:

Step-by-step explanation:

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Solving 4u + 8v = -3u + 2v

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Move all terms containing u to the left, all other terms to the right.

Add '3u' to each side of the equation. 4u + 3u + 8v = -3u + 3u + 2v

Combine like terms: 4u + 3u = 7u 7u + 8v = -3u + 3u + 2v

Combine like terms: -3u + 3u = 0 7u + 8v = 0 + 2v 7u + 8v = 2v

Add '-8v' to each side of the equation. 7u + 8v + -8v = 2v + -8v

Combine like terms: 8v + -8v = 0 7u + 0 = 2v + -8v 7u = 2v + -8v

Combine like terms: 2v + -8v = -6v 7u = -6v

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