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2 years ago

Geometry; building blocks

Mathematics

1 answer:

notka56 [123]2 years ago

7 0

Answer:

128 degrees because it is a suplimentary angle which adds up to be 180...so you subtract 180-52 and you get 128

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You get GPS units from two manufacturers, A and B. You get 43% of your units from A and 57% of your units from B. In the past, 2

defon

Answer:

0.5015 = 50.15% probability that it came from manufacturer A.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Defective

Event B: From manufacturer A.

Probability a unit is defective:

2% of 43%(from manufacturer A)

1.5% of 57%(from manufacturer B). So

$P(A) = 0.02*0.43 + 0.015*0.57 = 0.01715$

Probability a unit is defective and from manufacturer A:

2% of 43%. So

$P(A \cap B) = 0.02*0.43 = 0.0086$

What is the probability that it came from manufacturer A?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.0086}{0.01715} = 0.5015$

0.5015 = 50.15% probability that it came from manufacturer A.

4 0

2 years ago

True or false: the population proportion and sample proportion always have the same value.

Bingel [31]

Answer: false

The sample is a randomly selected representation of the population, therefore it cannot represent the true data with 100% accuracy.
As the sample size increases, the sample proportion approaches the population proportion.

5 0

3 years ago

Read 2 more answers

The sum of 3x2 + x – 7 and x² + 10 can be expressed as

Andrei [34K]

The sum of all that stuff is a number from here to there

6 0

2 years ago

Please answer correctly !!!!! Will mark brainliest !!!!!!!!!

SVEN [57.7K]

Answer:

y=(x-5)^2 - 6

Step-by-step explanation:

Subtracting the 5 to the x moves the parabola 5 units to the right. Putting the -6 at the end moves the parabola down 6 units.

8 0

2 years ago

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Leon's older brother is 4 3/4 feet tall. Leon is 1/3 foot shorter than his brother. How tall is Leon?

galben [10]

Wouldnt it be 4 2/4 feet tall?

3 0

3 years ago