# The Ocoriee Company somethimes makes printing errors in its advertisin

Juan Hewlett 2021-12-11 Answered
The Ocoriee Company somethimes makes printing errors in its advertising in the next issue of the paper "The managing editor has done a study of this problem and found the following data:
$\begin{array}{|c|c|} \hline \text{Number of Errors}&0&1&2&3&4\\ \hline \text{Probability}&0.56&0.21&0.13&0.07&0.03\\ \hline \end{array}$
the probability that the next issue of the paper will have at least 1 error is
Select:
a. 0.21
b. 0.77
c. 0.56
d. 0.44

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Step 1
Given:
Probability distribution of printing errors in the paper.
The probability that the next issue of the paper will have at least 1 error is obtained as below:
$$\displaystyle{P}{\left({X}\geq{1}\right)}={1}-{P}{\left({X}{<}{1}\right)}$$
$$\displaystyle={1}-{P}{\left({X}={0}\right)}$$
$$\displaystyle={1}-{0.56}$$
$$\displaystyle={0.44}$$
Thus, the probability that the next issue of the paper will have at least 1 error is 0.44.
Step 2
Option d. The probability that the next issue of the paper will have at least 1 error is 0.44.