The diameters of Douglas firs grown at a Christmas tree farm are normally distributed with a mean of 4 inches and a standard deviation of 1.5 inches. (Round your answers to four decimal places.) (a) What proportion of the trees will have diameters between 2 and 6 inches

Proportion of the trees will have diameters between 2 and 6 inches = 0.8164

Step-by-step explanation:

Given -

Mean  = 4

Standard deviation = 1.5

Let X be the diameter of tree

proportion of the trees will have diameters between 2 and 6 inches =

  =  

                         =     Put  []

                         =  

                          =

                          = .9082 - .0918

                           = 0.8164

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.

step-by-step explanation:

in which figure is point g a centroid