Acompany produces steel rods. the lengths of the steel rods are normally distributed with a mean of 92.6-cm and a standard deviation of 2-cm. for shipment, 12 steel rods are bundled together. find the probability that the average length of a randomly selected bundle of steel rods is between 92-cm and 92.4-cm. enter your answer as a number accurate to 4 decimal places.

0.2140

Step-by-step explanation:

Given : A company produces steel rods. The lengths of the steel rods are normally distributed with

Sample size :

Let x be the length of randomly selected item.

z-score :

For x=92 cm

For x=92.4 cm

The probability that the average length of a randomly selected bundle of steel rods is between 92-cm and 92.4-cm by using the standard normal distribution table

=

Hence, the probability that the average length of a randomly selected bundle of steel rods is between 92-cm and 92.4-cm is 0.2140.

square pyramid

step-by-step explanation:

square prism looks like nothing like that

triangular prism has a rectangular base instead of a square base

tetrahedron has a triangular base