9514 1404 393
Answer:
3.88%
Step-by-step explanation:
The probability that 1 is defective and 3 are not (out of four) is ...
P(1 of 4) = 4(0.01)(0.99)^3 ≈ 0.0388 = 3.88%
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The multiplier of 4 comes from the number of ways that 1 can be chosen from 4.
<span>Round 0.30 each (or $1.80 for all 6 of them), the milk is
$1.30. Total of estimates is $11.10
The customer gave you 5 + 6 + 0.25 or $11.25, which is very close
(and slightly higher) than the total of your estimates. I'd guess the
register is correct.
Actual value is $8.04 + 6*0.29 + 1.31 = 8.04 + 1.74 + 1.31 = $11.09. The register is definitely correct. </span>
