Find the indicated area under the curve of the standard normal distribution, then convert it to a percentage and fill in the blank.
About _______ % of the area is between z= - 3 and z = 3 (or within 3 standard deviations of the mean).
solutoion:
P(-3 < Z <3 )
= P(Z <3 ) - P(Z < -3)
Using z table
= 0.9987 -0.0013
= 0.9974
=99.74% of the area
Find the indicated area under the curve of the standard normal distribution, then convert it to a percentage and fill in the blank.
Find the indicated area under the curve of the standard normal distribution; then convert it to a percentage and fill in the blank. About ______% of the area is between z equals minus 1 and z equals 1 (or within 1 standard deviation of the mean).
Find the indicated area under the curve of the standard normal distribution, then convert it to a percentage and fill in the blank.About _____% of the area is between z=-2.2 and z=2.2 (or within 2.2 standard deviations of the mean).About ____% of the area is between z=-2.2 and z=2.2 (or within 2.2 standard deviations of the mean).
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Using the proper functions on a TI 84 Plus: Find the indicated area under the curve of the standard normal distribution; then convert it to a percentage and fill in the blank. About ____ % of the area is between z = -3 and z = 3
1. a) About ____ % of the area under the curve of the standard normal distribution is between z=−0.409z=-0.409 and z=0.409z=0.409 (or within 0.409 standard deviations of the mean). b) About ____ % of the area under the curve of the standard normal distribution is outside the interval z=[−0.78,0.78]z=[-0.78,0.78] (or beyond 0.78 standard deviations of the mean). c) About ____ % of the area under the curve of the standard normal distribution is outside the interval z=−0.86z=-0.86 and z=0.86z=0.86 (or...
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