Amélie runs a bakery. She wants to find out whether her cake sales are affected by the weather conditions. She recorded the dail
y temperature and the number of cakes she sold on different days of the year. The table shows the data she gathered. Daily Temperature (°F) Cakes Sold
42 39
45 52
48 31
54 61
59 72
62 35
64 61
65 34
67 58
75 45
84 24
The correlation coefficient is close to .
Based on this information, we can conclude that Amélie's cake sales are affected by the daily temperature.
Given that Amélie runs a bakery. She wants to find out whether her cake sales are affected by the weather conditions. She recorded the daily temperature and the number of cakes she sold on different days of the year
Let us find the correlation coefficient for the variables x, daily temperature and y, no of cakes sold.
x y
42 39
45 52
48 31
54 61
59 72
62 35
64 61
65 34
67 58
75 45
84 24
r -0.197481837
Since r is nearer to 0 than to 1, we find that there is a negative very moderate correlation between the two variables.
We cannot conclude that Amélie's cake sales are affected by the daily temperature.
