Grades in a statistics course and an operations research course taken simultaneously were as follows for a group of students. operation research grade statistics grade a b c other a 25 6 17 13 b 17 16 15 6 c 18 4 18 10 other 10 8 11 20 are the grades in statistics and operations research related? use α = 0.01 in reaching your conclusion. what is the p-value for this test?

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle

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