6.1.7 (video solution) an article in human factors (june 1989) presented data on visual accommodation (a function of eye movement) when recognizing a speckle pattern on a high-resolution crt screen. the data are as follows: 36.45, 67.90, 38.77, 42.18, 26.72, 50.77, 39.0, and 50.23. calculate the sample mean and sample standard deviation. round your answers to 2 decimal places.

- the sample mean is 44

- the sample standard deviation is 12.35

Step-by-step explanation:

given information:

data, = 36.45, 67.90, 38.77, 42.18, 26.72, 50.77, 39.0, 50.23

the number of data, n = 8

the sample mean, xbar

xbar = ∑/n

       = (36.45+67.90+38.77+42.18+26.72+50.77+39.0+50.23)/8

       = 352.08/8

       = 44

standard deviation, s

s =

  =

 =

 = 12.35

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation: