Answer:
8.2+/-0.25
= ( 7.95, 8.45) years
the 95% confidence interval (a,b) = (7.95, 8.45) years
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 = 8.2 years
Standard deviation r = 1.1 years
Number of samples n = 75
Confidence interval = 95%
z value(at 95% confidence) = 1.96
Substituting the values we have;
8.2+/-1.96(1.1/√75)
8.2+/-1.96(0.127017059221)
8.2+/-0.248953436074
8.2+/-0.25
= ( 7.95, 8.45)
Therefore the 95% confidence interval (a,b) = (7.95, 8.45) years
Answer:
the least common multiple of 12 and 18 is 36
Answer:
Option B And Option E
Step-by-step explanation:
three or more points are said to be collinear if they lie on a single straight line.
In the given figure :
Points J, K, and Q are collinear.
Through any two given points only one line can be drawn.
In the given figure:
There is only one line that can be drawn through points L and P.
Answer: The fist and fourth one
Step-by-step explanation:
