Question: Please help with the question attached in the picture below: X is a standard normal random variable with # = 0. What value of o

Please help with the question attached in the picture below:

X is a standard normal random variable with # = 0. What value of o would ensure that the absolute value of X is less than 0.5 in 90% of all realizations

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3. Im trying to point out what we need to do to make this happen

1. I try to create an image of the message

4. I try to make them feel what I really mean (1 is related to the visionary, 2 to the logical, 3 to action and 4 to the emotional).