I NEED THE ANSWERS ASAP MY ASSIGNMENT IS TIMED. I dont need an explanation just answers. Ill give a good rating thank you!

Question 1:

If the mean of a data set is 20, the standard deviation is 1.5, and the distribution of the data values is approximately normal, about 95% of the data values fall in what interval centered on the mean? O a 15.5 to 24.5 Ob 17 to 23 O c 18.5 to 21.5 Od 14 to 26The area under d1e normal curve below is equal to 1 unit. Each grid square has an area oF ELEM unit. Sup pose the annual rainfall in an Alaskan town is norrnallg.r distributed I.-lrith a mean of 150 inches per year and a standard deviation of 36 inches per year. Use the graph to approximate the probability d1at the rainfall in a given year is less than 130 inches. Express your answer as a percent. 0 a 11% O b 29% O c 50% O a 39% Suppose x is a normally-distributed random variable with mean =50 and standard deviation 0 = 8. Use the table to find the probability that x > 34. Express your answer as a decimal. Z -2.5 -2 -1.5 -1 -0.5 0 0.5 1.5 2 2.5 Area 0.01 0.02 0.07 0.16 0.31 0.5 0.69 0.84 0.93 0.98 0.99 O 0.98 O b 0.93 O C 0.02 Od 0.46