A store manager receives a delivery of 10 boxes of lightbulbs. Each box contains 20 lightbulbs. The store manager tests all the

Question

3 years ago

11

A store manager receives a delivery of 10 boxes of lightbulbs. Each box contains 20 lightbulbs. The store manager tests all the

lightbulbs in one of the boxes and finds that 4 of them are defective.
Which statement about the lightbulbs in the remaining boxes is best supported by this information?

Between 25 and 50 lightbulbs will be defective.

More than 80 lightbulbs will be defective.

Between 60 and 80 lightbulbs will be defective.

No more than 25 lightbulbs will be defective.

Mathematics

1 answer:

NNADVOKAT [17] · Answer 1 · 2022-04-14T16:41:47+03:00

NNADVOKAT [17]3 years ago

7 0

We can expect that there will be about 4 broken lightbulbs in each of the 10 boxes, which is 40 lightbulbs. This means between 25 and 50 lightbulbs will be defective.