Answer: I think its D
Step-by-step explanation:
To ease the understanding, let's write it in degrees and not in Radian:
Formula of conversion: Degree°/180 = Radian/π
Convert 7π/4 in degrees: = (7x180)/4 = 315°
This angle is in the IV th Quadrant of the UNIT circle. So you can write 315° or - 45° .
sin(7π/4) = sin(315°) = sin( - 45°) = - sin(45°) = - (√2)/2
Answer: Airline P since the median is lower and the SDR is lower
Step-by-step explanation:
Answer: attending the game
Step-by-step explanation:
Given: 12 out of the first 48 people who entered the stands were wearing a coat.
That means, Proportion of people wearing coat =
(People wearing coat divided by Total people)
Total people in the sample attending the game= 200
Number of people wearing a coat = 

Hence, 50 people are wearing a coat.
The data is a positive correlation