IF N/5 2. 4, tf JLUIT UJ ule Balance Poin ofA RCు BAKERSFIELD COLLEGE OGY B5 Which measure of central tendency should be used to describe the following? left side The me pution. baland A. Students rank order in class (top of the class, average, less than average). B. The gender of participants in a study. symme tion. C. A professor uses a standardized test to measure verbal skills for a sample of incoming college stddenor D. A researcher asks each participant to select his or her favorite color from a set of eight color patenes. only i make res (e. icans) Positio d be ean is ple, , 7, v n in rean s rean 4. One question on a student survey asks: In a typical week, how many times do you eat a fast food restaurant? The following frequency distribution table summarizes the results for a sample of 16 students. Complete the table. tel.f. n=16 Number of times per week rel. f cf Percentile 2こ 16 =13 5 16=.31 16 100.0 16 .13 2=16=.13 4. 2. 93-75 atical 4:16=.25 .31 1.25 13 n the 50.0 s are %3D36= :13 cf pro 37.5 2+0=2 12-5 4+2=6 13 2+4+2=8 1S 16X100= 93-75 13:16XL00%3D81.25 16:16X100= 100-0 St2+4+2=13 2+S+2+4+2=1S IC tion 1+2+St2+4+2-a. What is the n? 16 8:16x100= 50.0 6:16x 100= 37.5 is t Nen b. What is the mode? 3 2:16X100= 12.5 4x2=8 3 S- 15 C. What is the median? 2-S 2x2=4 d. What is the mean? 2-25 36=2.25 16 Medran: 5. 4 n=16 3+2=25 2|Frequency Distribution and Central Tendency-Riess (15+1)