Answer:
Coefficient of determination = 0.149769
Step-by-step explanation:
We are given the following in the question:
Coefficient of correlation, r = -0.387
We have to find the coefficient of determination.
Coefficient of determination =
Coefficient of determination:
- It tells us about the variation explained in the model.
- This correlation of determination tells that 14.98% of the variation is explained in the model that is we can say that the independent variable explains 14.98% changes or prediction in the dependent variable.
- It ranges from 0 to 1 and a correlation of determination of 1 means that the dependent variable is 100% predicted by the independent variable.
- Correlation of determination of 0 means that the dependent variable cannot be predicted by the independent variable.
Answer:
41.66%
Step-by-step explanation:
Total profit we have to gain =25/100×240 =60
Cost of one item = 240/100 =2.40
Also given that 1/4 of total good are sold with 10% profit which mean profit =
=6.
(Here 1/4 of 100 is 25 and cost per unit is 2.4)
Total money to be recovered from 75(100-25) items =60-6 =54
Let profit percentage to be charged on 54 items be p%.
Original cost =2.4×54 = 129.6
Profit amount =54 =129.6×p/100
p =41.66% =percentage of profit on rest of the goods.
Answer: it will take 0.33 years for the heights to be the same.
Step-by-step explanation:
Let x represent the number of years it will take for both trees to be the same height.
Type A is 7 feet tall and grows at a rate of 2 inches per year. This means that the height of the tree after x years would be
2x + 7
Type B is 2 feet tall and grows at a rate of 17 inches per year. This means that the height of the tree after x years would be
17x + 2
For the heights to be the same, the number of years would be
17x + 2 = 2x + 7
17x - 2x = 7 - 2
15x = 5
x = 5/15
x = 0.33 years
Answer:
what??
Step-by-step explanation:
Answer:
currently 1 £ = 1.10174 €
