It is thought by some researchers that exercise for college students is related to the sex of the student. a survey was taken of 470 college students in california that relates their sex to the frequency of exercise per week. the results are summarized in the contingency table below. use this data to answer problems 1, 2 and 3. contingency table what proportion of the students surveyed exercise at least once per week?

contingency table

choose one answer.

a. \frac{160}{470}
b. \frac{248}{470}
c. \frac{310}{470}
d. \frac{321}{470}
e. none of the above

Iwish i knew the answer but i don’t but someone will come and us

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