FALL 2018 STA 2023 INTRODUCTORY STATISTICS-1
WELCOME TO THE PROJECT SUBMISSION WEBSITE

INSTRUCTOR: VENKATESWARA RAO MUDUNURU
EMAIL: VMUDUNUR@MAIL.USF.EDU

{Remember: This will be active for submissions from March 17, 2019}


INSTRUCTIONS:
1. Give your answers in two decimal places for the probabilities calculated in this project. Do not use fractions.
2. Follow the hints to answer your questions.
3. You may only submit this project once! Please check your work before you submit it.

First name:
Last name:
Section number:
UID (starting with U):
EXAM-1 Score:
EXAM-2 Score:

Consider these 11 data points [include your exam-1 and exam-2 scores to these 9 points]: 105, 91, 52, 86, 100, 96, 98, 109, 96, (YOUR Exam-1 SCORE HERE), (YOUR Exam-2 SCORE HERE). Please include your EXAM-1 score and EXAM-2 score to these 9 scores and make it a total count of 11 points. In the table below, we have scores of 9 students falling in their respective Grade. YOU MUST ADD YOUR EXAM-1 and EXAM-2 SCORES TO THIS GRADE FREQUENCIES TO GET TOTAL COUNT AS 11. Grade scale is: A for ≥ 90; B for ≥ 80 and < 90; C for ≥ 70 and < 80; D for ≥ 60 and < 70; F for < 60. For questions, 1-5, AFTER completing the table with your grades of exam-1 and exam-2 scores, answer Q1-Q5. *Note: If you have an exam score in decimals, say 101.5, round it up to 102; if you got a score of 96.5, round it up to 97, etc.

Grade Frequency
A 7
B 1
C 0
D 0
F 1

Question-1: If we chose a student at random, what is the probability that student received grade-D?
Question-2: If C or above is considered as a pass grade, and if we chose a student at random, what is the probability that the student received a pass grade?
Question-3: What is the probability that the student selected at random got a fail grade?
Question-4: What is the probability that the student selected at random got a B or A grade?
Question-5: Is Question-4 situation considered as mutually exclusive case? {Answer: YES or NO or MAYBE}

For answering these below Q6-Q20 questions, please use these 11 listed values: 105, 91, 52, 86, 100, 96, 98, 109, 96, (YOUR Exam-1 SCORE HERE), (YOUR Exam-2 SCORE HERE)

Question-6: What is the sample size you have?
Question-7: What is the sample range of these 11 data points?
Question-8: What is the first (lower) Quartile of these 11 data points?
Question-9: What is the second Quartile of these 11 data points?
Question-10: What is the third (upper) Quartile of these 11 data points?
Question-11: What is the Inter-Quartile Range?
Question-12: What is the median of these 11 data points?
Question-13: What is the rough shape of these data? {Use comparison of mean and median to answer this}
Question-14: What is the probability that a randomly chosen number among these 11 data points is between 95 and 100, exclusive of the ends?
Question-15: What is the probability that a randomly chosen number among these 11 data points is not a multiple of 5?
Question-16: What is the probability that a randomly chosen number among these 11 data points is an even number given that it is multiple of 4?
Question-17: What is the 15% Trimmed mean of these 11 data points?
Question-18: What is the sample mean of these 11 data points?
Question-19: What is the sample standard deviation of these 11 data points?
Question-20: What is the sample variance of these 11 data points?