It took about 0.66 hour, which is basically 40 minutes.
Answer: Celsius scale
Step-by-step explanation:
Fahrenheit scale is established from the freezing and boiling temperatures of water, which are:
Freezing temperature of water: 
Boiling temperature of water: 
Which means that all temperatures below are below the freezing temperature of water. Therefore, if Jen is in the Summer season, which is characterized by high temperatures, it is incoherent to think that the thermometer is using the Farenheit scale.
Now, 
is in accordance with the high temperatures recorded in the summer season.
If we want to know how much is in Farenheits, we must use the following conversion formula:
Answer:
-0.20
Step-by-step explanation:
Given the data:
Age at auction (x) ____price sold (y)
391
51
32
84
47
104
88
43
470
51
Y:
76.9
95.4
86.3
49.3
80
57
47.8
80
70
86.9
General formula for a simple linear regression :
y = ab + c
Where ;
y = predicted variable ; a = slope / gradient
b = predictor / independent variable ; c = intercept
From the result obtained from the calculator :
y = -0.01246X + 74.65552
Correlation Coefficient is used to measure the strength of relationship between linear variables.
The regression Coefficient obtained is - 0.20
This shows that there is a weak negative correlation between the age at auction and the price at which painting is sold. This is because the negative sign means that value of y decreases as x increases or vice versa, however, due to a correlation vale which is closer to 0 than 1 or - 1, we can conclude that the negative relationship between the variables is weak.
The second and third ones are the true ones
