A-Let z be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.) P(z ≤ −1.90)=____ B-Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Round your answer to four decimal places.) The area to the right of z = 0.05 is ____ C-Let x = red blood cell (RBC) count in millions per cubic millimeter of whole blood. For healthy females, x has an approximately normal distribution with mean ? = 3.6 and standard deviation ? = 0.6. (d) Convert the z interval, z < −1.44, to an x interval. (Round your answer to one decimal place.) x < ___ (e) Convert the z interval, 1.28 < z, to an x interval. (Round your answer to one decimal place.) _____< x (f) Convert the z interval, −2.25 < z < −1.00, to an x interval. (Round your answers to one decimal place.) ____< x < ____
A-Let z be a random variable with a standard
P(z ≤ −1.90)=____
B-Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Round your answer to four decimal places.)
The area to the right of z = 0.05 is ____
C-Let x = red blood cell (RBC) count in millions per cubic millimeter of whole blood. For healthy females, x has an approximately normal distribution with mean ? = 3.6 and standard deviation ? = 0.6.
(d) Convert the z interval, z < −1.44, to an x interval. (Round your answer to one decimal place.)
x < ___
(e) Convert the z interval, 1.28 < z, to an x interval. (Round your answer to one decimal place.)
_____< x
(f) Convert the z interval, −2.25 < z < −1.00, to an x interval. (Round your answers to one decimal place.)
____< x < ____
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