In a standard normal distribution what percentage of the data is within 2 standard deviations of the mean? A)
68%
B)
95%
C)
99.7%
D)
100%

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer