i need help with the following exercise.
X is a random variable that follows normal distribution. For a large sample of this variable we know that.
1)35% of the observations have a value lower than 70
2)19% of the observations have a value higher than 90
draw the approximative box-and-whisker graph,supposing that there arent any extreme values.
X is a random variable that follows normal distribution. For a large sample of this variable we know that.
1)35% of the observations have a value lower than 70
2)19% of the observations have a value higher than 90
draw the approximative box-and-whisker graph,supposing that there arent any extreme values.