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Which of the following is the median of the date set below? 9, -7, 1, -4, 3

A. -7

B. 1

C. 3

D. -4

Answer Explanation:

The median of a data set is determined by arranging the numbers in ascending orders, and the median is the number the falls in the middle position.

-7, -4, 1, 3, 9

There are five numbers in the data set, and the median falls in the third position from either side. Thus, 1 fall in the third position.

Therefore, the Correct Answer is B.

Q #1: Which of the following values is the greatest?

A. 3/8

B. 6.25

C. 10/7

D. 7.4

Answer Explanation

To find the greatest number from the given options, convert the decimal numbers into fractions.

6.25 becomes 625/100

7.4 becomes 74/10

The LCM for the denominators of 8, 100, 7, and 10 is 2800. Now we can multiply each fraction with the LCM.

3/8*2800=1050

625/100*2800=17500

10/7*2800=4000

74/10*2800=20720

The fraction 7.4 is the greatest of all.
Q #2: Which of the following is the median of the date set below? 9, -7, 1, -4, 3

A. -7

B. 1

C. 3

D. -4

Answer Explanation

The median of a data set is determined by arranging the numbers in ascending orders, and the median is the number the falls in the middle position.

-7, -4, 1, 3, 9

There are five numbers in the data set, and the median falls in the third position from either side. Thus, 1 fall in the third position.
Q #3: Which of the following is the appropriate unit of measure to express the weight of a knife?

A. Liter

B. Milliliter

C. Gram

D. Kilogram

Answer Explanation

The weight of the knife could be appropriately expressed in grams. Since a knife is a small object, we do not expect to measure its weight in kilograms. Liter and milliliter are units of measuring the volume of objects.

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