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3 years ago

15

10/50 the ratio as a fraction in simplest form

2 answers:

Tpy6a [65]3 years ago

6 0

To find the simplest form of the ration divide the numerator and denominator by the GCF of both numbers. In this case the GCF is 10. (GCF means the Greatest Common Factor).

10÷10/50÷10 = 1/5

Best of Luck!

Pani-rosa [81]3 years ago

6 0

Answer:

To find the simplest form of the ration divide the numerator and denominator by the GCF of both numbers. In this case the GCF is 10. (GCF means the Greatest Common Factor).

10÷10/50÷10 = 1/5

Best of Luck!

Read more on Brainly.com - brainly.com/question/14604885#readmore

Step-by-step explanation:

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geniusboy [140]

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Step-by-step explanation:

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2 years ago

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.3. (Round your ans

Maurinko [17]

Answer:

0.0039 is the probability that the sample mean hardness for a random sample of 12 pins is at least 51.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 50

Standard Deviation, σ = 1.3

Sample size, n = 12

We are given that the distribution of hardness of pins is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{1.3}{\sqrt{12}} = 0.3753$

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$P( x \geq 51) = P( z \geq \displaystyle\frac{51 - 50}{0.3753}) = P(z \geq 2.6645)$

$= 1 - P(z < 2.6645)$

Calculation the value from standard normal z table, we have,

$P(x \geq 51) = 1 - 0.9961= 0.0039$

0.0039 is the probability that the sample mean hardness for a random sample of 12 pins is at least 51.

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