Monday
December 9, 2013

# Posts by donna

Total # Posts: 412

Statistics
A construction company builds apartment buildings. The construction time follows a normal distribution with a mean time of 200 days and a standard diviation of 20 days. (a) What is the probability of completing a building in 224 days or less? (b) What is the probability that i...

Statistics
I need help with (b): A small company with 5 employees wants to know some statistics about their employee's ages. They surveyed the 5 employees and found that their ages were: 22, 29, 35, 37 and 42. (a)Determine: Mean age: 33 Median: 35 Range: 20 Variance: 59.5 S.D.: 7.72 ...

Statistics
So Bob - Final answer would be .441?

Statistics
You have a bucket with 3 black balls and 7 red balls. What is the probability of drawing 2 reds and 1 black in 3 draws if order is not important? (Assume replacement after each draw)

statistics
A population is normally distributed with a man of 100 and a standard deviation of 15. is it unusual for themean of a sample of 3 to be 115 or more? Why or why not?

geometry
m angle 2=6x-2

Math
This is Identity property of multiplication states that the product of 1 and any number or variable is the number or variable itself. For example, 4 × 1 = 4, - 11 × 1 = - 11, The teacher is probably trying to help them learn this particular property. You are a grea...

Literacy
THE ANSWER FOR THAT QUESTION IS (A)