Calculate the mean of this probability distribution. Give a brief interpretation of the value of the mean. The officerof the Math Club are planming to sell 125 tickets to be raffled during the school's foundation day. One ticket will win Php 2000 and the other tickets will win nothing. If you will buy one ticket, what will be you expected gain?​

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.