Multiple Choice
A new extended-life light bulb has an average life of 750 hours,with a standard deviation of 50 hours. If the life of these light bulbs approximates a normal distribution,about what percent of the distribution will be between 600 hours and 900 hours?
A) 95%
B) 68%
C) 34%
D) 99.74%
Correct Answer:
Verified
Correct Answer:
Verified
Q31: The average starting salary of individuals with
Q32: The total area of a normal probability
Q33: A binomial distribution has 100 trials (n
Q34: The shape of any uniform probability distribution
Q35: The normal distribution can be used to
Q37: The standard normal distribution is a special
Q38: The average score of 100 students taking
Q39: The average score of 100 students taking
Q40: The number of different standard normal distributions
Q41: A national manufacturer of unattached garages discovered