(b) Work out an equation of the straight line that passes through (9, 2) and (3,5) [3 marks]
1 answer:
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Answer:
So, the probability is P=0.041.
Step-by-step explanation:
We know that 45% of people in Fast-Food restaurants order a diet drink with their lunch.
We conclude that the probaility p=0.45 that a person order a diet drink.
We calculate the probability that the fourth person orders a diet drink.
We get:
So, the probability is P=0.041.