Question

Given a normal distribution with ? = 50 and ? = 8, and given you select a sample of n = 100, complete parts (a) through (d). a. What is the probability that X? is less than 49? P(X? < 49) = (Type an integer or decimal rounded to four decimal places as needed.) b. What is the probability that X? is between 49 and 49.5? P(49 < X? < 49.5) = (Type an integer or decimal rounded to four decimal places as needed.) c. What is the probability that X? is above 50.7? P(X? > 50.7) = (Type an integer or decimal rounded to four decimal places as needed.) d. There is a 35% chance that X? is above what value? X? = (Type an integer or decimal rounded to two decimal places as needed.)

          Given a normal distribution with ? = 50 and ? = 8, and given you select a sample of n = 100, complete parts (a) through (d).
a. What is the probability that X? is less than 49?
P(X? < 49) = 
(Type an integer or decimal rounded to four decimal places as needed.)
b. What is the probability that X? is between 49 and 49.5?
P(49 < X? < 49.5) = 
(Type an integer or decimal rounded to four decimal places as needed.)
c. What is the probability that X? is above 50.7?
P(X? > 50.7) = 
(Type an integer or decimal rounded to four decimal places as needed.)
d. There is a 35% chance that X? is above what value?
X? = 
(Type an integer or decimal rounded to two decimal places as needed.)

Given a normal distribution with ? = 50 and ? = 8, and given you select a sample of n = 100, complete parts (a) through (d).
a. What is the probability that X? is less than 49?
P(X? < 49) =
(Type an integer or decimal rounded to four decimal places as needed.)
b. What is the probability that X? is between 49 and 49.5?
P(49 < X? < 49.5) =
(Type an integer or decimal rounded to four decimal places as needed.)
c. What is the probability that X? is above 50.7?
P(X? > 50.7) =
(Type an integer or decimal rounded to four decimal places as needed.)
d. There is a 35% chance that X? is above what value?
X? =
(Type an integer or decimal rounded to two decimal places as needed.)

Added by Gregorio M.

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