200 students would be reasonable to test because you can average the score more easily.
In plain English, an average is indeed a single number chosen to represent a group of numbers; it is often the sum of the values divided by the number of numbers in the group. The average of a integers 2, 3, 4, 7, or 9 is, for instance, 5. An average could be another statistic like the median or mode depending on the situation.
here, we have,
Because the mean would be greater if the personal incomes of a few billionaires were included, the median—the amount below which 50% of personal incomes fall and over which 50% of personal incomes rise—is sometimes used to represent the average personal income.
It is advised to avoid to use the word "average" while addressing central tendency measurements because of this.
If we wanted to know how high a 5th-grade student could jump, 200 students would be reasonable to test because you can average the score more easily.
Therefore, 200 students would be reasonable to test because you can average the score more easily.
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The correct answers are:
87.96; 224.7; 686.98.
Explanation:
In order to write these numbers as decimals, we need to convert the fractions to fractions with denominators of 10, 100, or 1000.
224 7/10 already has a denominator of 10; this makes it 224.7.
For 87 24/25, we can multiply the denominator by 4 to make 100. Doing that means we need to multiply the numerator by 4 as well:
87 (24*4)/(25*4) = 87 96/100 = 87.96
For 686 49/50, we can multiply the denominator by 2 to make 100. Doing that means we need to multiply the numerator by 2 as well:
686 (49*2)/(50*2) = 686 98/100 = 686.98