Question

13.   A worker takes a random sample of 200 bolts and finds that 30 of them are either too long or too short, thus making them unusable. Estimate the number of unusable bolts in a production of 17,000 bolts.

Answer 1

its 85?

Answer 2

yup. now multiply that by 30

Answer 3

thank you

Answer 4

yup :) no prob

Answer 5

(# of unusable bolts)/(# of bolts total) = (# of unusable bolts)/(# of bolts total)

30/200 = x/17000

30*17000 = 200x

510000 = 200x

510000/200 = x

2550 = x

x = 2550


So there are roughly 2550 unusable bolts in a production of 17,000 bolts

Answer 6

thanks jim to

Answer 7

yw