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AlekseyPX
3 years ago
10

Esme takes the bus to university 40 times during a term to relative frequency of the bus being late is 0.3

Mathematics
2 answers:
Nimfa-mama [501]3 years ago
7 0

Answer: 12

Step-by-step explanation:

So.

40 multiplied by 0.3 is 12 

qwelly [4]3 years ago
6 0

Answer:

I Don't know....

Step-by-step explanation:

sry.....

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The table shows the time a patient spends at the dentist and the amount of the bill.
erica [24]

<u>Answer-</u>

Correlation coefficient for the data in the table was found to be 0.93.

<u>Solution-</u>

Taking the independent variable or input variable as, the time a patient spends at the dentist and the dependent variable or output variable as the amount of the bill.

We know that,

r=\frac{n(\sum xy)-\sum x \sum y}{\sqrt{[n\sum x^{2} -({\sum x})^{2}]\times [n\sum y^{2} -({\sum y})^{2}]}}


Calculating the values from the table, then putting it in the formula

r=\frac{4 \times 3130.9 \ - \ 6.45 \times 1473}{\sqrt{[4\times 12.3725 \ - \ 6.45^{2}][4 \times 877475 \ - \ 1473^2]}}

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3 years ago
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