proability and statics

Question

Let z be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.)

P(−1.11 ≤ z ≤ 2.61)

 = 

Shade the corresponding area under the standard normal curve.

  

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Answer 1

The correct figure is the top right picture.

P(-1.11 < z < 2.61) = P(z < 2.61) - P(z < -1.11) = 0.9955 - 0.1335 = 0.862.