Question

4) In a clinical test with 2353 subjects, 1136 showed improvement from the treatment.

Answer 1

1217

Explanation:

Given

`Subjects = 2353`

`Improvement = 1136`

Required

The number that didn't improve --- missing from the question.

Let the unimproved be represented as x.

So, we have:

`x + Improvement = Subjects`

Substitute known values

`x + 1136 = 2353`

Solve for x

`x =- 1136 + 2353`

`x =1217`