Can write the equation the national test has 5 equation is of Thai language Studies in religion and culture, foreign languages, mathematics and science as follows:
Thai y = 15.33x2 - 97.68x 216.703
social studies. Y = 2.319x2 - 153.799x 293.712
.Foreign language y = 25.829x2 - 144.4x 299.835
mathematics y = 11.062x2 - 53.224x 100.448
science y = 8.552x 15.948
by. X y, achievement is the national test and score of each course, respectively.
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