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3 years ago

Explain Rational, Irrational, Real and Whole Numbers, and Integers and give examples of each.

Mathematics

1 answer:

Rama09 [41]3 years ago

8 0

I'm sorry for been so late.

Rational Numebers: a rational number is any number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. For example: 1，2，3,-1，-2，-3

Irrational Numbers: an irrational number is a real number that cannot be expressed as a ratio of integers. For example: 1/3, 1/7 , 1/9

Real Numbers: a real number is a value that represents a quantity along a continuous line. For example: all rational and irrational numbers.

Whole Numbers: A member of the set of positive integers and zero. A positive integer. An integer. For example: 142， 20， 1

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Answer:

2 400 000

Step-by-step explanation:

divide the numbers into 3

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Step-by-step explanation:

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3 years ago

Refer to the technology output given to the right that results from measured hemoglobin levels (g/dL) in 100 randomly selected a

charle [14.2K]

Answer:

Step-by-step explanation:

Confidence interval in less than symbol expressed as

$\bar{x} - E < \mu < \bar{x} + E
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Where $\bar{x}$ is sample mean and $E$ is margin of error.

$13.03 < \mu 13.42
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The given t interval is $(13.032 , 13.418 )
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That is $\bar{x} - E = 13.032$ and $\bar{x} + E = 13.418$

Solve these two equation by adding together.

$2 \bar{x} = 13.032 + 13.418
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Solve this value of \bar{x} in equation $\bar{x} - E = 13.032$ and solve for $E$

$13.225 - E = 13.032
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Best point estimate of $\mu = \bar{x} = 13.225
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Best point estimate of margin of error = 0.193

Since sample size = 100 which is sufficiently large (Greater than 30) , it is no need to confirm that

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3 years ago

Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people ans

Bond [772]

If Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Then the mean of the sample is 3.75.

The average of a group of numbers is simply defined as the mean. In statistics, the mean is regarded as one of the indicators of central tendency.

Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week.

Fourteen people answered that they generally sell two cars; nineteen generally sell three cars; twelve generally sell four cars; nine generally sell five cars; eleven generally sell six cars.

Then the mean of the sample will be

$\rm Mean = \dfrac{1}{N} \times \Sigma _{i} \ \ x_if_i$

Then the table is given below.

Then we have

$\rm Mean = \dfrac{1}{65} \times (244)\\\\\\Mean = 3.7538\\\\Mean \approx 3.75$

More about the mean link is given below.

brainly.com/question/521501

#SPJ1

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2 years ago