Given a normal distribution with the ?=52 and ?=3?, completeparts? (a) through? (d).
a. What is the probability that X>47??
P(X>47?)=0.9525
?(Round to four decimal places as? needed.)
b.What is the probability that X<49??
?P(X<49?)=0.1587
?(Round to four decimal places as? needed.)
c.For this? distribution, 5?% of the values areless than what? X-value?
X =
?(Round to the nearest integer as? needed.)
d. Between what two? X-values (symmetricallydistributed around the? mean) are 80?% of the? values?
Between what two? X-values (symmetrically distributed aroundthe? mean) are 85% of the? values?
Between what two? X-values (symmetrically distributed aroundthe? mean) are 90?% of the? values?
Between what two? X-values (symmetrically distributed aroundthe? mean) are 95% of the? values?
I need help with parts c.) and d.) please!
