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 ,varia
ble ,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 ,- ,CORREC
T ,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 ,distributi
on? ,- ,CORRECT ,ANSWER-
95.44% ,of ,all ,possible ,observed ,values ,of ,the ,random ,variable ,x ,are ,within ,plus ,or ,mi
nus ,three ,standard ,deviations ,of ,the ,population ,mean

Properties ,of ,the ,normal ,probability ,distribution ,- ,CORRECT ,ANSWER-- ,the ,normal ,di
stribution ,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 ,nor
mal ,curve ,to ,the ,left ,of ,the ,mean

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

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