Question

Calculator Submit Question Question 7 A manufacturer knows that their items have a normally distributed length, with a mean of 8.8 inches, and standard deviation of 1.8 inches. If one item is chosen at random, what is the probability that it is less than 4.6 inches long? Question Help: Message instructor Calculator Submit Question

Answer 1

7)

Solution :

P(x < 4.6) = P[(x - $\mu$ ) / $\sigma$ < (4.6 - 8.8) / 1.8]

= P(z < -2.33)

= 0.0099