Question
TheThe frequency distribution of the number of years of service for 100 employees is shown below....
TheThe frequency distribution of the number of years of service for 100 employees is shown below.
|
Years |
Frequency |
|
0 up to 5 |
12 |
|
5 up to 10 |
16 |
|
10 up to 15 |
42 |
|
15 up to 20 |
20 |
|
20 up to 25 |
10 |
|
Total |
100 |
i. Construct a relative frequency distribution for this data
ii.Estimate the proportion of employees who have fewer than 10 years of service
iii. Estimate the proportion of employees who have more than 20 years of service
iv. Estimate the proportion of employees who have between 10 and 20 years of service
v. According to the records, 30% of the businesses in US does sponsor in large scale. Just this morning 10 businesses sponsored.
- What is the expected number of businesses that sponsor?
- What is the standard deviation of the number of businesses that sponsor?
Homework Answers
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