Need help with 7, 9, and 10 please thank you! QUESTION 90 Indicate which student
ID: 3239241 • Letter: N
Question
Need help with 7, 9, and 10 please thank you! QUESTION 90 Indicate which student has the higherz score. Art Major K-46 P 50.55-52 eater Major x 70 75.1 s 7.3 O a. Both students have the same score O b. The art major has a higher soore than the theater major O c. The theater major has a higher score than the art major d. Neither student received a positive score: therefore, the higher soore cannot be determined. O QUESTION 10 The coefficient of variation for a data set is the mean divided by the standard deviation, expressed as a percentage. False Click Save and submit to save and submit. Click SaveAllAnswers to save allanswers. O Type here to search TOSHIBA
Explanation / Answer
7) Coefficient of Variation = (Standard Deviation / Mean) * 100
mean = 60, sd = sqrt(9) = 3
Coefficient of Variation = (3/60)*100 = 5%(Option B)
9) Art Major
Z = (x - x)/s = (50.5-46)/5.2 = 0.86538
Theater Major
Z = (75.1-70)/7.3 = 0.69863
Option B. The art major has a higher score than the theater major
10) False. It is the standard deviation divided by the mean