Quality control is an important issue at ACME Company, which manufactures light bulbs. Totest 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 mode

375

Step-by-step explanation:

The mode of a set of given data value is the value of the data in the given set that appears the most in the given set of data ( most frequent value ).

as seen in the randomly sampled value : 378, 361, 350, 375, 200, 391, 375, 368, 321

The value : 375 is the mostly repeated value in the given set of data above hence the mode recorded is 375 hours

ACME company carrying out quality control on its light bulbs is one way to test how long their product ( light bulbs ) will last when used by an end consumer and also on how to improve the life span of the light bulbs.

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47