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Alex
3 years ago
7

Suppose a bag of marbles has 4 green, 2 red, 5 yellow, 1 brown, and 7 blue marbles. What is the probability of picking a blue ma

rble, not replacing it, and picking a brown marble?
Mathematics
2 answers:
Nikitich [7]3 years ago
5 0
There are a total of 19 marbles. 

The chance of picking a blue marble is \frac{7}{19}

Since you didn't put that marble back in, there are 18 marbles still in the bag.

The chance of picking a brown marble is <span>\frac{1}{18}

Multiplying the two values together results with </span>\frac{7}{342}
Alik [6]3 years ago
3 0
The probability of picking a blue marble and not replacing it is 7 out of 19

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Sidana [21]
1127.50 money

475-24=451
451 times 2.5
5 0
2 years ago
An automobile manufacturer is concerned about a possible recall of its best selling four-door sedan. If there was a recall there
goldfiish [28.3K]

Complete question is;

An automobile manufacturer is concerned about a possible recall of its best - selling four-door sedan. If there were a recall, there is a probability of 0.25 of a defect in the brake system, 0.18 of a defect in the transmission, 0.17 of a defect in the fuel system, and 0.40 of a defect in some other area.

(a) What is the probability that the defect is the brakes or the fueling system if the probability of defects in both systems simultaneously is 0.15?

(b) What is the probability that there are no defects in either the brakes or the fueling system?

Answer:

A) 0.27

B) 0.73

Step-by-step explanation:

Let B denote that there is a defect in the break system

Let T demote that there is a defect in transmission

Let F denote that there is a defect in the fuel system.

Let P denote that there is a defect in some other area.

Now, we are given;

P(B) = 0.25

P(T) = 0.18

P(F) = 0.17

P(O) = 0.40

A) We are given that probability of defects in both brakes and the fueling system simultaneously is 0.15.

Thus, it means; P(B ⋂ F) = 0.15

Now, we want to find the probability that the defect is the brakes or the fueling system. This is expressed as;

P(B ⋃ F) = P(B) + P(F) - P(B ⋂ F)

Plugging in the relevant values to give;

P(B ⋃ F) = 0.25 + 0.17 - 0.15

P(B ⋃ F) = 0.27

B) We want to find the probability that there are no defects in either the brakes or the fueling system.

This is expressed as;

P(B' ⋃ F') = 1 - P(B ⋃ F)

Plugging in relevant value;

P(B' ⋃ F') = 1 - 0.27

P(B' ⋃ F') = 0.73

7 0
3 years ago
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padilas [110]

Answer:

The total cost of tickets sold is $2016.

Step-by-step explanation:

What I did to get this answer was multiply 168 and 12

Hopes everyone has a good day, and plz stay safe :)

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
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