BUAL 2650 Gupta Exam 1 with Questions and Correct Answers 2025.

BUAL 2650 Gupta Exam 1 with Questions
and Correct Answers 2025




It ,is ,appropriate ,to ,use ,the ,uniform ,distribution ,to ,describe ,a ,continuous ,random
,variable ,x ,when ,- ,CORRECT ,ANSWER-relative ,frequencies ,of ,all ,possible ,values ,of
,x ,are ,about ,the ,same


The ,normal ,approximation ,of ,the ,binomial ,distribution ,is ,appropriate ,when ,-
,CORRECT ,ANSWER-np>5 ,and ,n(1-p)>5


Negative ,Z ,value ,indicates ,that ,- ,CORRECT ,ANSWER-it ,is ,less ,than ,mean

Which ,of ,the ,following ,statements ,is ,not ,a ,property ,of ,the ,normal ,probability
,distribution? ,- ,CORRECT ,ANSWER-95.44% ,of ,all ,possible ,observed ,values ,of ,the
,random ,variable ,x ,are ,within ,plus ,or ,minus ,three ,standard ,deviations ,of ,the
,population ,mean


Properties ,of ,the ,normal ,probability ,distribution ,- ,CORRECT ,ANSWER-- ,the ,normal
,distribution ,is ,symmetric
- ,the ,mean, ,median, ,and ,mode ,are ,equal
- ,the ,area ,under ,the ,curve ,to ,the ,right ,of ,the ,mean ,is ,equal ,to ,the ,area ,under ,the
,normal ,curve ,to ,the ,left ,of ,the ,mean


If ,the ,random ,variable ,x ,is ,normally ,distributed, ,______ ,percent ,of ,all ,possible
,observed ,values ,of ,x ,will ,be ,within ,three ,standard ,deviations ,of ,the ,mean ,-
,CORRECT ,ANSWER-99.73


The ,z ,value ,tells ,us ,the ,number ,of ,_____ ,that ,a ,value ,of ,x ,is ,from ,the ,mean. ,-
,CORRECT ,ANSWER-standard ,deviations