Solve the problem.

-In a sample of 99 widgets, 7 were defective. How many defective widgets would you expect in a sample of 792 widgets?
A) 118 widgets
B) 54 widgets
C) 59 widgets
D) 56 widgets

Question

Solve the problem.

-In a sample of 99 widgets, 7 were defective. How many defective widgets would you expect in a sample of 792 widgets?
A) 118 widgets
B) 54 widgets
C) 59 widgets
D) 56 widgets

Quizplus · Accepted Answer

We can use the concept of proportionality to solve this problem. 
The proportion of defective widgets in the sample of 99 widgets can be expressed as:
7/99 = x/792 
where x is the number of defective widgets we expect in a sample of 792. 
By cross multiplying, we get:
99x = 7*792 
Solving for x, we get:
x = (7*792)/99 = 56 
Therefore, we can expect 56 defective widgets in a sample of 792 widgets. 
The correct answer is D) 56 widgets.

Solve the Problem. -In a Sample of 99 Widgets, 7 Were Defective. How