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pychu [463]
3 years ago
6

Two positive improper fractions are multiplied. Is the product sometimes, always or never less than 1. explain

Mathematics
1 answer:
melisa1 [442]3 years ago
6 0
<span>Given situation : 2 improper fraction is multiplied. Now is the product always more than than 1?
Yes, the product is always more than 1. Because take note that in improper fraction, the numerator is always higher compare to the denominator of the given fraction. That means when you divide the numerator from the denominator, the answer would always be more than 1.
Example:
=> 5 / 4  x 4 / 2
=> 20 / 8 or equals to 5/2
now divide
=> 5 / 2
=> 2 1/2

</span>



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Answer:

A.

mean = 724.2

Median = 715

Mode = 768

B.

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C.

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Step-by-step explanation:

Number of samples n = 25

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A.

1. Mean = 18105/25

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2. Median is the middle value when arranged from the least value to the highest = 715

3. Mode is the number with the highest frequency = 768 (occured two times)

B.

1. Range = highest value - lowest value

Highest value = 772

Lowest value = 687

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2. Standard deviation = √(X-barX)²/n-1

= √20604/25-1

=√858.5

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Please check attachment for the full calculation of the standard deviation

C.

Interval

[Mean - 2(sd), mean + 2(sd)]

= [724.2-2x29.3, 724.2+2x29.3]

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