Find the proportion of observations from a standard Normal distribution that satisfies 0.51 Sketch the Normal cune and shade the area under the curve that is the answer to the question

How do i do this? i don’t understand

Without any equipment, you can see stars that are 2{,}800{,}0002,800,0002, comma, 800, comma, 000 light-years away. by looking through a small telescope, you can see stars that are 3{,}112{,}000{,}0003,112,000,0003, comma, 112, comma, 000, comma, 000 light-years away. approximately how many times as far can you see using a small telescope as without any equipment?

Find the sum of the given arithmetic series. 24 + 17 + 10 + 3 + + (–39)