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STatiana [176]
3 years ago
13

Show how to make one addend the next tens number. complete the new addition sentence. 15+37=?

Mathematics
2 answers:
Dafna1 [17]3 years ago
7 0
52, 15+37=52            llllllllll                                                                                                              
diamong [38]3 years ago
4 0
52 is the answer. Hoped I helped.
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(A) The 25th percentile is 20.

(B) The mean of the data set is 20 and the median of the data set is 25. The data set is left-skewed.

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The data set arranged in ascending order is:

S = {15, 20, 22, 25, 28, 40, 55}

(A)

Compute the 25th percentile as follows:

25^{th} \text{Percentile}=[\frac{n+1}{4}]^{th}obs.\\\\=[\frac{7+1}{4}]^{th}obs.\\\\=2^{nd}obs.\\\\=20

Thus, the 25th percentile is 20. This value implies that exactly 25% of the observations are less than 20.

(B)

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