ieetherthe pne i n wby. 19) A) The graph cannot represent a normal density funct

Question

ieetherthe pne i n wby. 19) A) The graph cannot represent a normal density function because as x increases without bound, the graph takes negative values. B) The graph can represent a normal density function. C) The graph cannot represent a normal density function because it is not symmetric. D) The graph cannot represent a normal density function because it is bimodal. Provide an appropriate response. 20) Find the area under the standard normal curve between z =-1.5 and z = 2.5·Show work. 20) A) 0.6312 B) 0.9831 C) 0.7182 D) 0.9270

Explanation / Answer

19)

C) is correct

20)
P(-1.5< Z < 2.5)
=normsdist(2.5)- normsdist(-1.5)
= 0.926983
=0.9270

option D) is correct

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