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2025 STAT130W1 Introduction to Statistics

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Which of the following options gives the line of best

fit?

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What is the

probability that at most 1 grade-3 apple is picked? (Round off to 3 decimal places.)

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Which of the following Excel commands/formulae can be used to calculate the probability that no grade-3 apples are picked?

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What

is the probability that the shopkeeper hires out at most 3 Model-A vacuum

cleaners in a day? (Round off to 3 decimal places.)

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If the Model-B vacuum cleaner is hired out for R100

per day, how much income can the shopkeeper expect to earn from hiring out

Model-B vacuum cleaners in a 5-day week? (Write only the number of Rands, do not include "R".)

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In total, how many vacuums can the shopkeeper expect

to hire out in a 5-day week?

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Let 𝑋 be

the random variable that counts the number of

Type-2

pills that the

woman took this morning. Using the answers in questions 15, 16 and 17, identify which of the following options gives the pdf of 𝑋.

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What type of distribution does 𝑋 follow?

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The woman gets very tired if she does not take a

Type-2

pill in the morning. What is the probability that she will get

tired because she did not take a

Type-2 pill?

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What is the probability that the woman took the

correct medication?

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