The answer is y=-2x+4. The y-intercept is (0,4) and the slope is -2.
Answer: ( 8.11 , 9.69)
the 95% confidence interval of the true mean weight
= ( 8.11 , 9.69)
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
x+/-zr/√n
Given that;
Mean x = 8.9
Standard deviation r = 0.9
Number of samples n = 5
Confidence interval = 95%
z(at 95% confidence) = 1.96
Substituting the values we have;
8.9+/-1.96(0.9/√5)
8.9+/-1.96(0.4025)
8.9+/- 0.79
= ( 8.11 , 9.69)
Therefore at 95% confidence interval (a,b) = ( 8.11 , 9.69)
25= 1.50x+4
Subtract 4
21= 1.50x
Divide by 1.50
X=14 rides or less
Answer:
<em>It's 1209.6</em>
Step-by-step explanation:
we are given
÷ 
we can divide it by using long division method
we will get
÷ = 
..............Answer
