The table below shows the probability distribution of student ages in a high school with 1500 students. What is the expected value for the age of a randomly chosen student? Age 13 14 15 16 17 18 Probability 0.01 0.27 0.30 0.25 0.16 0.01 O A. 15.38 OB. 15.31 O C. 15.50 D. 15.35 SUBNET​

According to me it should be Option B, 15.31

Hope this helps!

B, 15.31

Step-by-step explanation:

Expected value is just probabilty*outcome

so it's just the sum of probability*age

.01*13+14*.27+15*.3+16*.25+17*.16+18*.01= 15.31

b or 2, just plug these equations into your graphing calculator then check the graph to see the image. if it matches up then that's your answer!

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)