$3$:$32$

$.$Ill LTE

$()$ Question $7$

Unanswered $5$ attempts left

A company studied the number of lost$-$time accidents occurring at its Brownsville, Texas, plant. Historical records show that $10\%$ of the employees suffered lost$-$time accidents last year. Management believes that a special safety program will reduce such accidents to $5\%$ during the current year. In addition, it estimates that $15\%$ of employees who had lost$-$time accidents last year will experience a lost$-$time accident during the current year.

$($Hint: Define two events A: accident last year and $B$ : Accident this year$)$

a$.$ What percentage of the employees will experience lost$-$time accident in both years $(tc1$ decimal$)?$

b$.$ What percentage of the emr