A company installs 5,000 light bulbs. The lifetimes of the lightbulbs are approximately normally distributed with a mean of 500 hours and a standard deviation of 100 hours. Find the approximate number of bulbs that can be expected to last the indicated amount of time.Between 500 hours and 675 hours
A. 4,700
B. 2,300
C. 4,800
D. 2,256
Answer: B
Mathematics
You might also like to view...
Provide an appropriate response.Factor completely: 10x2 - 17x + 3
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the equation.
= 
A. 
B. 
C. 
D. 
Mathematics
Find the square root. Do not use a calculator. Do not refer to a table of square roots.
A. 
B. 14
C. 38,416
D. 196
Mathematics
Graph the circle if possible.x2 + (y - 5)2 = 16
A. 
B. 
C. 
D. 
Mathematics