Question 1178507: Assuming that the daily wages for workers in a particular industry averages Birr 11.90 per day and the standard deviation is Birr 0.40. If the wages are assumed to be normally distributed, determine what percentage of workers receive wages
between Birr 10.90 and Birr 11.90
between Birr 10.80 and Birr 12.40
between Birr 12.20 and Birr 13.10
less than Birr 11.00
more than Birr 12.95
Is crime rate somehow associated with age? An investigator collected the following data from five sample groups to see the relationship between the two variables:
Average age in year (X)
70
56
35
28
14
Average crime rate (%) (Y)
28
42
35
42
48
Determine the regression line of crime rate on age and interpret it?
Estimate the % of crime rate for groups of individuals having average age 40.
Determine the coefficient of correlation and interpret it.
Out of 5 male workers and 7 female workers of a factory, a task force consisting of 5 workers is to be formed. What is the probability that the task force will consist of?
2 male and 3 female workers?
all female workers?
at least 3 male workers.
The probability that an item picked at random from the assembly line in a factory will be defective is 0.02. If a sample of 4 is to be selected, then find the probability that
One will be defective
At most one will be defective
At least one will be defective.
Calculate the mean and standard deviation for t
Answer by ikleyn(52810)   (Show Source):
You can put this solution on YOUR website! .
One and ONLY ONE problem/question per post.
It is the RULE, the POLICY and the REQUIREMENT of this forum.
It is written in this page
https://www.algebra.com/tutors/students/ask.mpl?action=ask_question&topic=Equations&return_url=http://www.algebra.com/algebra/homework/equations/
from which you post your problems.
It is assumed that you read these rules before posting.
It is also assumed that you do understand what is written in that page and follow the rules.
Those who violate them, work against their own interests.
|
|
|
