Answer:
D. 5
Step-by-step explanation:
Mean: (50+60)/2
110/2
55
Margin of error:
60 - 55
5
Answer:
a) For 460 minutes of calling.
b) This would cost 87,4 dollar.
Step-by-step explanation:
a) x= the amount of calling in minutes
=> 23+0,14x=0,19x
<=> 23=0,05x
<=> 460=x
b) 0,19.460=87,4
Answer:
Step-by-step explanation:
Given
Population Proportion =
Confidence level =95 %
For 95% confidence interval level is
=
=
The interval lies between
Answer:
Isosceles obtuse Triangle
Answer: Right Triangle
Step-by-step explanation: When added, the two sides have to be longer than the hyp.