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oee [108]
3 years ago
11

What number is needed to complete the pattern below? 5 10 3 15 20 13 25 30 __?

Mathematics
2 answers:
djverab [1.8K]3 years ago
4 0
23
because
the pattern is
(5 10) ..1.. (15 20) ..2.. (25 30) ..3..


..1... = 3
..2.. = 13
so ..3.. = 23
matrenka [14]3 years ago
4 0

Answer:

23

Step-by-step explanation:

The given series of numbers is 5 10 3 15 20 13 25 30 _

Segregating the numbers in sets of 3 we have:

5 10 3

15 20 13

25 30 _

The difference between 2 corresponding terms in adjacent sets is 10.

For example: taking the first terms from each set,it is 5, 15 , 25

Similarly taking the second term from each set, it is 10,20,30

Hence, taking the third term: 3, 13, 23.

So the missing term in the sequence is 23.

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Answer:

Complete the following statements. In general, 50% of the values in a data set lie at or below the median. 75% of the values in a data set lie at or below the third quartile (Q3). If a sample consists of 500 test scores, of them 0.5*500 = 250 would be at or below the median. If a sample consists of 500 test scores, of them 0.75*500 = 375 would be at or above the first quartile (Q1).

Step-by-step explanation:

The median separates the upper half from the lower half of a set. So 50% of the values in a data set lie at or below the median, and 50% lie at or above the median.

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The third quartile(Q3) separates the lower 75% from the upper 25% of a set. So 75% of the values in a data set lie at or below the third quartile, and 25% of the values in a data set lie at or the third quartile.

The answer is:

Complete the following statements. In general, 50% of the values in a data set lie at or below the median. 75% of the values in a data set lie at or below the third quartile (Q3). If a sample consists of 500 test scores, of them 0.5*500 = 250 would be at or below the median. If a sample consists of 500 test scores, of them 0.75*500 = 375 would be at or above the first quartile (Q1).

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