What is five and nine tenths in standard form
2 answers:
Answer:
The standard form of five and nine tenths is 5.9.
Step-by-step explanation:
Given : Expression five and nine tenths.
To find : What is expression i standard form ?
Solution :
We have given a number in word form.
To write in standard form we have to convert word into number form.
Tenths mean
five and nine tenths means
Therefore, The standard form of five and nine tenths is 5.9.
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Answer:
(A)
(B) If a country increases its life expectancy, the happiness index will increase.
(C) If the life expectancy is increased by 3.5 years in a certain country, the happiness index will increase by 0.4165.
(D) If the life expectancy is 67 years in a certain country, the happiness index will be 7.21.
Step-by-step explanation:
A regression analysis was performed to determine if there is a relationship between the happiness index (y) and life expectancy in years of a given country (x).
The output of the regression analysis are as follows:
a = -0.762
b = 0.119
r² = 0.8649
r = 0.93
(A)
The equation of the Least Squares Regression line of the form y = _ + _ x is:
(B)
The correction between the variables happiness index (y) and life expectancy in years of a given country (x) is, 0.93.
The correlation coefficient is positive. This implies that there is a positive relation between the two variables, i.e. as the value of life expectancy in years increases the happiness index also increases.
Thus, if a country increases its life expectancy, the happiness index will increase.
(C)
Compute the value of y for x = x + 3.5 as follows:
Thus, if the life expectancy is increased by 3.5 years in a certain country, the happiness index will increase by 0.4165.
(D)
Compute the value of y for x = 67 as follows:
Thus, if the life expectancy is 67 years in a certain country, the happiness index will be 7.21.