A cell phone company orders 400 new phones from a manufacturer. If the probability of a phone being defective is 2.1%, predict how many of the phones are likely to be defective. Round your answer to the nearest whole number.

2.1% of 400 = ____

29 To predict how many of the phones are likely to be defective, we can use the concept of probability and expected value.

First, let's calculate the expected value, which represents the average number of defective phones we can expect out of the 400 phones ordered.

Expected Value = Total Number of Phones x Probability of Defective Phone

Expected Value = 400 x 0.021

Expected Value ≈ 8.4

Since we cannot have a fraction of a phone, we round the expected value to the nearest whole number.

Therefore, we can predict that around 8 phones are likely to be defective from the order of 400 phones.