What is the irrational number in This set: 12.89, square root of 12 and 12/144 ?
1 answer:
Good night,
<span>Irrational numbers are those that can't be expressed as a fraction:
12.89 can be expressed as: </span>
<span>The above numbers can be expressed as a fraction, then the logical answer is: </span>
But we will check the answer:
As you can see we can't express that number as a fraction, so that is te correct answer.
<span>Irrational numbers are those that can't be expressed as a fraction:
12.89 can be expressed as: </span>
<span>The above numbers can be expressed as a fraction, then the logical answer is: </span>
But we will check the answer:
As you can see we can't express that number as a fraction, so that is te correct answer.
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Answer:
The amount of money separating the lowest 80% of the amount invested from the highest 20% in a sampling distribution of 10 of the family's real estate holdings is $238,281.57.
Step-by-step explanation:
Let the random variable <em>X</em> represent the amount of money that the family has invested in different real estate properties.
The random variable <em>X</em> follows a Normal distribution with parameters <em>μ</em> = $225,000 and <em>σ</em> = $50,000.
It is provided that the family has invested in <em>n</em> = 10 different real estate properties.
Then the mean and standard deviation of amount of money that the family has invested in these 10 different real estate properties is:
Now the lowest 80% of the amount invested can be represented as follows:
The value of <em>z</em> is 0.84.
*Use a <em>z</em>-table.
Compute the value of the mean amount invested as follows:
Thus, the amount of money separating the lowest 80% of the amount invested from the highest 20% in a sampling distribution of 10 of the family's real estate holdings is $238,281.57.