I have done all the work, just want to make sure I’m right.

I have done all the work, just want to make sure I’m right.

Name: __________________________________________ Calculation Problems Exam #1 PSYC 241 ~ TERRELL ~ Fall 20 20 Page 1 of 4 Instructions: • Answer e ach of the following questions in such a way that I can eas ily follow what you are doing. NEATNESS COUNTS! • Be sure to show ALL of your work. Even if your answer is correct, if no work is shown you will receive no points for that question. Use the following data set to answer the subsequent questions: 2 2 1 9 5 6 4 3 4 8 5 3 3 4 3 3 1) Construct a frequency distribution ta ble for the data. You r table must include the ‘x’ column, the ‘f’ column, and the ‘p’ column . Other columns are optional. Name: __________________________________________ Calculation Problems Exam #1 PSYC 241 ~ TERRELL ~ Fall 20 20 Page 2 of 4 2) Construct a graph of the data using a histogram. Make sure that your histogram reflects the “real limits” of each value. 3) Compute the MEAN of the data set. 4) Compute the MEDIAN of the data set. 5) Compute the MODE of the data set. Name: __________________________________________ Calculation Problems Exam #1 PSYC 241 ~ TERRELL ~ Fall 20 20 Page 3 of 4 6) Compute the SUM OF SQUARES of the data set using the computational formula . Make sure to actually write the notation for the formula, as you will be asked questions about the formula on the exam. Name: __________________________________________ Calculation Problems Exam #1 PSYC 241 ~ TERRELL ~ Fall 20 20 Page 4 of 4 7) Compute the STANDARD DEVIATION of the data set, assuming that the data set is a sample . Make sure to actually write the notation for the formula, as you will be asked questions about the formula on the exam. 8) Compute the STANDARD DEVIATION of the data set, assuming that the data includes the entire population . Make sure to actually write the notation for the formula, as you will be asked questions about the formula on the exam.