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If those employees who made 6 or more errors were removed fr
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26 Dec 2020, 03:38
26 Dec 2020, 03:38
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A sample of employees were tested on data-entry skills for one hour , and the number of errors (x) they made and the percent of employees (p) making x errors were recorded as follows.
If those employees who made 6 or more errors were removed from the sample and an employee were selected at random from those remaining, what is the probability that the employee selected made no errors?
A, 1/11
B. 1/22
C. 1/39
D. 1/50
E. 1/78
Kudos for the right answer and explanation
If those employees who made 6 or more errors were removed from the sample and an employee were selected at random from those remaining, what is the probability that the employee selected made no errors?
A, 1/11
B. 1/22
C. 1/39
D. 1/50
E. 1/78
Kudos for the right answer and explanation
Re: If those employees who made 6 or more errors were removed fr
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26 Dec 2020, 08:19
26 Dec 2020, 08:19
1
After removing the 22% of the employees who made more than 6 errors, we are left with the rest 78% of the employees.
Now probability of choosing an employee having made 0 errors = %age of employees with 0 error/total %age of employees
= 2 / 78
= 1 / 39
Answer C
Now probability of choosing an employee having made 0 errors = %age of employees with 0 error/total %age of employees
= 2 / 78
= 1 / 39
Answer C
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