AI in Industries

AI helps healthcare, education, transport and communication by making work faster, more accurate and more productive, with people still checking it.

Key ideas

Healthcare: AI helps doctors spot problems in scans and reminds patients about medicines.
Education: AI suggests practice at the right level and gives quick hints.
Transport: AI predicts traffic, plans timetables and warns when parts need repair.
Communication: AI translates, filters junk messages and turns speech into text.
AI saves time on repetitive work and catches faults people might miss.
Responsible use means testing AI on new data, keeping data private and letting people check its decisions.

Remember

Time taken	amount of work ÷ rate per hour
Time saved	time by hand − time by machine
Example	360 letters: 360 ÷ 20 = 18 h by hand, 360 ÷ 60 = 6 h by machine → 12 h saved
Percentage increase	increase ÷ old value × 100
Fewer missed mistakes	8 → 3 in every 200 forms: (8 − 3) × 1,000 ÷ 200 = 25 fewer in 1,000 forms
Accuracy	correct ÷ number tested × 100%

Watch out

Dividing the increase by the NEW value instead of the old one.
Giving the time taken by the machine instead of the time saved.
Letting AI make important decisions with no person checking.

Worked example

(a) A person can sort 20 letters an hour; an AI-assisted machine can sort 60 an hour. How many hours are saved on 360 letters by using the machine?
(b) Before it had an AI camera, a machine read 450 forms an hour. With the camera, it reads 900 an hour. By what percentage did the output go up?

Working: (a) 360 ÷ 20 = 18 hours; 360 ÷ 60 = 6 hours; (b) increase 450; 450 ÷ 450 × 100

Answer: (a) 12 hours; (b) 100%