OBJECTIVE FORESTRY

FORESTRY

AGRICULTURAL STATISTICS AND ECONOMICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
There is an approximate linear relationship between the height of females and their age (from5 to 18 years) described by the equation Height = 50.3+6.1(Age), where height is measuredin centimeters and age in years. Which one of the following statements must be true?
A
The estimated slope is 6.1, which implies that female children between the ages of 5 and18 increase in height by about 6.1 cm for each year they grow older.
B
The correlation between Height and Age is negative.
C
The estimated intercept is 50.3 cm. We can conclude from this that the typical height offemale children at birth is 50.3 cm.
D
The heights of 68% of female children who are 10 years old are within 6.1 cm. of 110.4cm.
E
My niece is 8 years old and is 115 cm tall. She is shorter than average for girls her age.
Explanation: 
There is 1 question to complete.