Answer:
y = 7.8x + 26
Step-by-step explanation:
Given the following :
Pearson's r = 0.78
Average consumption of ice cream = 5 grams per week (m) with Standard deviation (sd) = 1.5 grams
Average weight = 65 kg with standard deviation of 15kg
Formular for the regression line :
General regression formula :
y = mx + c
y = predicted variable ; m = slope or gradient ; x = predictor variable ; c = intercept
Gradient (m) = change in y / change in x
m = (sd y / sd x) * r
m = (sd weight / sd ice cream) × r
m = (15 / 1.5) × r
m = 10 × 0.78 = 7.8
Intercept:
mean of weight(y) - [Slope×mean of icecream(x)]
65 - [7.8 × 5]
65 - 39 = 26
Hence,
y = 7.8x + 26
Answer:
.05
Step-by-step explanation:
to get a percent, you multiply by 100. so take 5 and divide by 100 to get decimal
Answer:
11
Step-by-step explanation:
proportions
Answer:
Option C is correct.
Step-by-step explanation:
The area of 1 side of the divider is approximately 8 x 3 = 24 < 25
Hope this helps!
:)
Answer:
y=-6x+42
Step-by-step explanation:
answer is able
