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For a Standard Normal Distribution
1. P(z is less than or equal to 1.33)
2. P(z is less than or equal to -2.33)
3. P(z is greater than or equal to 2.35)
4. P(-2.33 is less than z is less than 2.33)
5. P(2.33 is less than z is less than 2.95)

Respuesta :

meerkat18
In your question where ask to find the Standard Normal Distribution of the following:

give probabilities for 0<Z<infinity. For these ranges, you can read directly, for example, P(Z<1.96)=0.975. So for #1, you read directly on the line 1.3 and column 0.03. For #2, we note that the distribution is symmetrical about Z=0, so P(Z<-2.33) is the same as P(Z>2.33) which again is the same as 1-P(Z<2.33) because we know that the area under a probability distribution function adds up to 1. For the remaining questions, work is similar to #2.

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