Statistic Assignment
Danyah
stat__assignment_3.docxSTAT 509 Assignment# 3 Name_______________________
Instructions:
1) Due Date
· April 20 @ 11:50pm
2) Assignment submission:
· When you submit an electronic file (assignment) you must use the following format: This is for: LAST NAME (in upper case), your first name, the course code, activity/assignment number and file format
· For example: SMITHJohn-STAT509-A1.doc
Assignment:
Question#1: In a certain automobile dealership, 70% of all customers purchase an extended warranty with their new cars. For 6 customers selected at random: (Show your work)
1) Find the probability that exactly 6 will purchase an extended warranty.
2) Find the probability at most 4 will purchase an extended warranty.
3) Find the probability less than 4 will purchase an extended warranty.
4) Find the probability more than 2 will purchase an extended warranty.
5) Find the probability more than 5 will purchase an extended warranty.
Question#2: In a sample of 1200 residents, each person was asked if he or she favored building a new town playground. The responses are summarized in the table below. (Show your work)
1) Favor the new playground?
2) Favor the playground among those that are less than 30?
3) Favor the playground among those that are more than 50?
4) Favor the playground and is less than 30?
5) Favor the playground or is less than 30?
