Let Z denote a random variable with a standard normal distribution. Evaluate: Pr {-0.42 < Z...

Let Z denote a random variable with a standard normal distribution.

Evaluate: Pr {-0.42 < Z < 1.67}
1. 0.3212
2. 0.3372
3. 0.3401
4. 0.6153
5. 0.9525

Solutions

Expert Solution

P( -0.42 < z < 1.67 ) = p (z < 1.67) - p(z < -0.42)

= 0.952540 - 0.337243

= 0.615298

~= 0.6153

So option (d) is correct choice.

orchestra answered 1 year ago

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