Let X be normally distributed with mean μ = 3.3 and standard deviation σ = 1.8. [You may find it useful to reference the z table.]
a. Find P(X > 6.5). (Round "z" value to 2 decimal places and final answer to 4 decimal places.)
b. Find P(5.5 ≤ X ≤ 7.5). (Round "z" value to 2 decimal places and final answer to 4 decimal places.)
c. Find x such that P(X > x) = 0.0668. (Round "z" value and final answer to 3 decimal places.)
d. Find x such that P(x ≤ X ≤ 3.3) = 0.2088. (Negative value should be indicated by a minus sign. Round "z" value and final answer to 3 decimal places.)
sorry for inconvenience, please see the updated answer
Get Answers For Free
Most questions answered within 1 hours.