BADM 216 Homework 3
Please solve the following questions related to Chapter 5: Discrete Probability Distribution.
- Twenty-five percent of all resumes received by a corporation for a management position are from females. Fifteen resumes will be received tomorrow.
- What is the probability that exactly 5 of the resumes will be from females?
0.1651
- What is the expected number of resumes from women?
3.75
- What is the variance of the number of resumes from women?
2.8125
(Please show the detail computation steps. Please don’t just give an answer from Excel functions or calculator functions. Otherwise, you will not get all the points.)
[Hint: Please see Chap005 – Slides 27 -39 for Binomial Probability Distribution. Please also see pages 237 – 245 in the textbook.]
- The average number of calls received by a switchboard in a 30-minute period is 5.
- What is the probability that between 10:00 and 10:30 the switchboard will receive exactly 6 calls?
- What is the probability that between 10:00 and 10:30 the switchboard will receive exactly 7 calls?
(Please show the detail computation steps. Please don’t just give an answer from Excel functions or calculator functions. Otherwise, you will not get all the points.)
[Hint: Please see Chap005 – Slides 40 -49 for Poisson Probability Distribution. Please also see pages 248 – 251 in the textbook.]
Please type your answer and the steps of computation in a Word file. (Please DO NOT just write the answer. Then you will not get full credit. Show the steps that you solve the problems. Partial credit will be given based on your computation steps.) Please save the file as “BADM216 Hw3_Your First Name_Your Last Name.docx” and submit through Canvas.
Due Date: September 30th, 2018, Sunday, 11:00PM.
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