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I am Lyosha [343]
3 years ago
14

The probability that an event will occur is fraction 2 over 3 . Which of these best describes the likelihood of the event occurr

ing?
Mathematics
1 answer:
Blababa [14]3 years ago
3 0

Answer:

2

Step-by-step explanation:

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Answer:

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a)y = a+bx

b = \frac{\sum(x_i-\bar{x})(y_i-\bar{y})}{\sum(x_i-\bar{x})^2} = \frac{r \times \sqrt{var(X) \times Var(Y)}}{Var(X)} =  \frac{0.72 \times \sqrt{0.4^2 \times 8500^2}}{0.4^2} = 15300

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y = 2830+15300 \times 3.3 = 53320

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