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liberstina [14]
3 years ago
12

12. In Europe, 88% of all households have a TV. 51% of all households have a TV and VCR. What is the probability that a househol

d has a VCR given they have a TV?
Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
7 0

Answer:

0.579  is the probability that a household has a VCR given they have a TV.

Step-by-step explanation:

We are given the following in the question:

Probability of all households have a TV = 88% = 0.88

P(T) = 0.88

Probability of all households have a TV and VCR = 51% = 0.51

P(T\cap V) = 0.51

We have to find the probability that a household has a VCR given they have a TV.

The conditional probability is given by:

P(V|T) = \displaystyle\frac{P(V\cap T)}{P(t)} = \frac{0.51}{0.88} = 0.579

0.579  is the probability that a household has a VCR given they have a TV.

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B-13=7 как решить этот уровнения​
beks73 [17]

Answer:

b equals 20

Step-by-step explanation:

b - 13 = 7

7 + 13 = b

7 + 13 = 20

7 0
3 years ago
Can someone please help me with this
timofeeve [1]

Answer:

x= 6

Step-by-step explanation:

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8 0
3 years ago
It’s #11 that I need help with
wel

#11

Perimeter:

P = 2(W + L)

P = 2(3.5 + 6.5)

P = 2(10)

P = 20 units


Area:

A = WL

A = 3.5 * 6.5

A = 22.75 square units


5 0
3 years ago
Consider a manufacturing process called as turning (a type of machining process) that is used to manufacture cylindrical metal s
Sav [38]

Answer: 86.64%

Step-by-step explanation:

Let x be a random variable that represents the diameter of metal samples.

Given : Population mean : \mu=10

Standard deviation: s=0.50

Specified tolerance on the diameter is 0.75 mm.

i.e. range of diameter = 10-0.75< x <10+0.75 = 9.25< x< 10.75

Formula to find the z-score corresponds to x: z=\dfrac{x-\mu}{s}

At x= 0.75,  z=\dfrac{9.25-10}{0.50}=-1.5

z=\dfrac{9.25-10}{0.50}=1.5

Using standard normal table for z-value,

P-value : p(-1.5

∴ Percentage of samples manufactured using this process satisfy the tolerance specification = 86.64%

6 0
3 years ago
I am in need of help-
ikadub [295]
I think it’s 4.308 when u multiply
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3 years ago
Read 2 more answers
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