$10d ≥ $800 Your answer is D
[they get $10 per donation(d), and they need at least $800 (that is the minimum, so they can raise more than $800).]
B is correct 12 for find the y-intercept of 2x-y=-6
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: 5/6
Step-by-step explanation:
(2/3×2/2)+(1/6×1/1)=?
4/6+1/6=5/5
Answer:
it is 13:7
Step-by-step explanation:
