Question

Complete Table 4.20 using the data provided.

Short answer

The whole dataframe is as follows:

Step-by-step solution

Given Information

A business needs to assess its attrition, or the length of time new employees stay with the organisation. They've developed a comprehensive confidence interval over time.

Concept Information

Now let us call the lot of years a new recruit will stay with the company and the probability that a new hire will stay with the company years $P\left(X\right)$.

Only when, according to discrete distributed features, is perhaps the probability functional of a continuous variable $X$.

i. $P\left(X\right)\ge 0$for all $X$

ii. $\sum P\left(X\right)=1$

Calculation

The missing percentage can be calculated using condition (ii) as follows:

$\sum P\left(X\right)=0.12+0.18+0.30+0.15+P\left(X_4\right)+0.10+0.05=1$

localid="1648917609114" $P\left(X_4\right)=1-0.90$

$=0.10$

Conclusion

As a result, the table's missing value is $0.10$.