Answer to Question #133853 in Statistics and Probability for Koketso Maripane

Question

Use the standard normal distribution to find p(-2.50<z<1.50)

Answer 1

Solution

$$P(-2.50<z<1.50)$$ $$= P(z<1.50) - P(z<-2.50)$$

From the standard normal table :

P(z<1.50) = 0.9332

P(z<-2.50) = 0.0062

Now

P(-2.50<z<1.50) = 0.9332 - 0.0062

= 0.927

Answer: 0.927