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3 years ago

CAN SOMEONE PLEASE HELP ME ANSWER THIS

Mathematics

1 answer:

exis [7]3 years ago

7 0

Answer:

3/8 or 37.5%

Step-by-step explanation:

_______+

8 total positions

3/8=37.5%

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Consider three boxes with numbered balls in them. Box A con- tains six balls numbered 1, . . . , 6. Box B contains twelve balls

murzikaleks [220]

Answer:

a) 0.73684

b) 2/3

Step-by-step explanation:

part a)

$P ( A is 1 / exactly two balls are 1) = \frac{P ( A is 1 and that exactly two balls are 1)}{P (Exactly two balls are one)}$

Using conditional probability as above:

(A,B,C)

Cases for numerator when:

P( A is 1 and exactly two balls are 1) = P( 1, not 1, 1) + P(1, 1, not 1)

= $(\frac{1}{6}* \frac{11}{12}*\frac{1}{4}) + (\frac{1}{6}*\frac{1}{12}*\frac{3}{4}) = 0.048611111$

Cases for denominator when:

P( Exactly two balls are 1) = P( 1, not 1, 1) + P(1, 1, not 1) + P(not 1, 1 , 1)

$= (\frac{1}{6}* \frac{11}{12}*\frac{1}{4}) + (\frac{1}{6}*\frac{1}{12}*\frac{3}{4}) + (\frac{5}{6}*\frac{1}{12}*\frac{1}{4})= 0.0659722222$

Hence,

$P ( A is 1 / exactly two balls are 1) = \frac{P ( A is 1 and that exactly two balls are 1)}{P (Exactly two balls are one)} = \frac{0.048611111}{0.06597222} \\\\= 0.73684$

Part b

$P ( B = 12 / A+B+C = 21) = \frac{P ( B = 12 and A+B+C = 21)}{P (A+B+C = 21)}$

Cases for denominator when:

P ( A + B + C = 21) = P(5,12,4) + P(6,11,4) + P(6,12,3)

$= 3*P(5,12,4 ) =3* \frac{1}{6}*\frac{1}{12}*\frac{1}{4}\\\\= \frac{1}{96}$

Cases for numerator when:

P (B = 12 & A + B + C = 21) = P(5,12,4) + P(6,12,3)

$= 2*P(5,12,4 ) =2* \frac{1}{6}*\frac{1}{12}*\frac{1}{4}\\\\= \frac{1}{144}$

Hence,

$P ( B = 12 / A+B+C = 21) = \frac{\frac{1}{144} }{\frac{1}{96} }\\\\= \frac{2}{3}$

4 0

3 years ago

The sample means for three samples of 20 are shown in the table. graph Compute the variation of each predicted population mean f

Lyrx [107]

Answer:

Step-by-step explanation:

Sample 1 :1.5

Sample 2:-2.5

sample 3:5.5

6 0

3 years ago

Read 2 more answers

What are the 5 infinitives?

Ymorist [56]

The five types of infinitives are full infinitives, bare infinitives, split infinitives, continuous infinitives , and perfect continuous infinitive.

Explanation:

Types of infinitives:

Five types of infinitives are as follow:

Full infinitives : Add 'to' Infront of the verb to complete the the situation.

Bare infinitives: here " to" get omitted from the sentence.

Split infinitives : Here adjectives slides between infinitives marker.

To hear : full infinitives changes to split infinitives : to slowly hear.

Continuous infinitives: Action going for certain period of required time.

Example : to be missing

Perfect continuous infinitives: prior to a time :

Example : to have seen

Therefore, there are are five types of infinitives .

Learn more about infinitives here

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5 0

1 year ago

Jocelyn's foot is 17 centimeters long. If she puts the heel of one foot next to the toes of her other foot, how long will both o

liraira [26]

Answer:

34 centimeters

Step-by-step explanation:

5 0

3 years ago

Evaluate the expression when m= -8 and n = 4<br> 5-m-n

borishaifa [10]

Answer:

Step-by-step explanation:

5-(-8)-4=9

Hope this helps!

7 0

3 years ago

Read 2 more answers

CAN SOMEONE PLEASE HELP ME ANSWER THIS ​

CAN SOMEONE PLEASE HELP ME ANSWER THIS