The population of lengths of aluminum-coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of .2 inches.

what is the probability that a randomly selected sample of 4 sheets will have an average length of less than 29.9 inches long?

 0.0668

Step-by-step explanation:

Given : The population of lengths of aluminum-coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.2 inches.

i.e. and

Let x denotes the lengths of aluminum-coated steel sheets.

Then the probability that a randomly selected sample of 4 sheets will have an average length of less than 29.9 inches long will be :-

  [by using the z-value table ]

Hence, the required probability = 0.0668

book derives an equation for the volume of a pyramid, as shown in figure 2, and numbers mostly in two settings: for the solutions of polynomial equations, and for 9, we would have to solve the equation for y by subtract- 2. the point (1,. 2) is the center of the circle whose equation is x2 y2. 2x. 4y p.w.c. davies.

step-by-step explanation:

4 + 5 7/9= 9 7/9

step-by-step explanation: