Question

Quality control is an important issue at ACME Company, which manufactures light bulbs. To test the life-hours of their light bulbs, they randomly sampled nine light bulbs and measured how many hours they lasted: 378, 361, 350, 375, 200, 391, 375, 368, 321.   
What is the median?

Answer 1

solution

378, 361, 350, 375, 200, 391, 375, 368, 321

median = median is the middle most observation in the data set

1st arrange the data lowest to heightest

200, 321, 350, 361, 368, 375, 375, 378, 391

median=368