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mart [117]
3 years ago
10

Help plz help ,!!,!,!,,,!!,!,!

Mathematics
1 answer:
mixas84 [53]3 years ago
6 0

Answer:

Step-by-step explanation:

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Which unit would best measure the weight of a pair of sissors?
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You would use ounces because scissors are too light to be measured in tons,pounds,or kilograms 
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If events A and B are independent, and the probability that event A occurs is 83%, what must be true?
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The true statement about the given conditional Probability is; The probability that event A occurs, given that event B occurs, is 83%.

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1 year ago
The weight of people in a small town in Missouri is known to be normally distributed with a mean of 186 pounds and a standard de
OleMash [197]

Answer:

the probability that a random sample of 17 persons will exceed the weight limit of 3,417 pounds is 0.0166

Step-by-step explanation:

The summary of the given statistical data set are:

Sample Mean = 186

Standard deviation = 29

Maximum capacity 3,417 pounds or 17 persons.

sample size = 17

population mean =3417

The objective is to determine the probability  that a random sample of 17 persons will exceed the weight limit of 3,417 pounds

In order to do that;

Let assume X to be the random variable that follows the normal distribution;

where;

Mean \mu = 186 × 17 = 3162

Standard deviation = 29* \sqrt{17}

Standard deviation = 119.57

P(X>3417) = P(\dfrac{X - \mu}{\sigma}>\dfrac{X - \mu}{\sigma})

P(X>3417) = P(\dfrac{3417 - \mu}{\sigma}>\dfrac{3417 - 3162}{119.57})

P(X>3417) = P(Z>\dfrac{255}{119.57})

P(X>3417) = P(Z>2.133)

P(X>3417) =1- 0.9834

P(X>3417) =0.0166

Therefore; the probability that a random sample of 17 persons will exceed the weight limit of 3,417 pounds is 0.0166

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3 years ago
Evaluate the following numerical expressions. 6+2^3•3
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The answer is 30
6+8•3
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Find the area of the semicircle. Round your answer to the nearest hundredth.
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Answer:

1.27388535028

Step-by-step explanation:

Simply using the formulas

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