CNSL 503 MOD 4 QUESTIONS WITH CORRECT ANSWERS 2025

CNSL 503 MOD 4 QUESTIONS WITH
CORRECT ANSWERS 2025
Normal distribution - CORRECT ANSWER -
a frequency distribution that is shaped like a symmetrical bell, unimodal curve



Total relative frequency of distribution - CORRECT ANSWER -area under curve = 100% of the data or 1.0



68% of values - CORRECT ANSWER -% fall within 1 standard deviation of mean



95% of values - CORRECT ANSWER -% fall within 2 standard deviations of mean



99.7 % of values - CORRECT ANSWER -fall with in 3 standard deviations of he mean



Normal curve defined by - CORRECT ANSWER -mean and standard deviation



Raw score - CORRECT ANSWER -exact value that is observed



Standard score - CORRECT ANSWER -
indicates exactly how many standard deviations a raw score is above or below the mean. Z-score



What is the purpose of calculating z-scores? - CORRECT ANSWER -The purpose of calculating z-
scores is to understand a score's relative standing within a distribution. The z-
score standardizes scores from different data sets with different means



Formula for raw score to z-score - CORRECT ANSWER -



Formula for z-score to raw score - CORRECT ANSWER -



Formula for sample mean to z-score - CORRECT ANSWER -
divided by standard error o/square root of sample