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Mice21 [21]
2 years ago
15

Occupation

Mathematics
1 answer:
baherus [9]2 years ago
7 0
C is answer no explanation needed
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According to police sources, a car with a certain protection system will be recovered 87% of the time. Find the probability that
WITCHER [35]

Answer: 0.01145

Step-by-step explanation:

We use Binomial distribution , where the probability of getting x successes in n trial is given by :-

P(x)=^nC_xp^x(1-p)^{n-x} , p = probability of getting each success in each trial.

As per given

The proportion that a car with a certain protection system will be recovered= p=0.87

n= 8

Let x be the number of cars will be recovered.

Then, the probability that 4 of 8 stolen cars will be recovered:

P(X=4)=^8C_4(0.87)^4(1-0.87)^{8-4}

=\dfrac{8!}{4!(8-4)!}(0.87)^4(0.13)^4\\\\= 70(0.57289761)(0.00028561)\\\\=0.0114537700474\approx0.01145

Hence, the required probability is 0.01145.

5 0
3 years ago
How many students chose walking as their preferred method of transportation
vova2212 [387]
Is there a picture for viewing 
4 0
3 years ago
Quadratic form of f(x)=(x+7)^2
Triss [41]

Answer:

x^2 + 14x + 49

Step-by-step explanation:

Use the distributive property:

(x + 7)(x + 7) = x^2 + 7x + 7x + 49 = x^2 + 14x + 49

3 0
2 years ago
In an engineering firm all workers work a basic week of 40 hours.
Romashka [77]

Answer:

$1,006.40

Step-by-step explanation:

Basic week = ($14.80/hour) * (40 hours) = $592.00

M-F overtime = ($14.80/hour ) * ( 1.25 ) * (12 hours) = $222.00

Sat overtime = ($14.80/hour ) * ( 1.5 ) * (2 hours) = $44.40

Sun overtime = ($14.80/hour) * ( 2 ) * (5 hours) = $148.00

Total wage = 592.00 + 222.00 + 44.40 + 148

Total wage = $1,006.40

6 0
3 years ago
How did the Germanic tribes govern thier kingdoms
Verdich [7]

The Germanic tribes were governed by unwritten costumes.

3 0
4 years ago
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