The Department of Health encourages elderly people to have a flu vaccination each year.

The Department of Health encourages elderly people to have a flu vaccination each year. The vaccination reduces the likelihood of getting a flu from 40% to 10%. If 45% of the elderly people visiting the doctor have the vaccination, find the probability that an elderly person chosen at random had the vaccination, given that they get flu.

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Multiple Choice Questions (MCQ) uploaded before May 2024

Solve for x from the given equation: 2^x · 2^(x + 1) = 128.
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