Answer:
80
Explanation:
The mean of the distribution of sample means always target the population mean. What this line tells is that whatever the population mean will be, the mean of the distribution of sample means will be same. Since the population mean is 80, the mean of distribution of sample means will also be 80.
However, the standard deviation of the sample distributions is different and is equal to the population standard deviation divided by square root of sample size. So in this case the standard deviation of distribution of sample means will be 6 .
Answer $14.40 hope this helps
Answer:
No, a triangle cannot have sides with the given lengths. That is because the sum of any two of the sides must be greater than the third side. In this case, the sum of 5 and 5 is less than the third side, 15.
Step-by-step explanation:
z = 5
3 (5) = 15
Triangle sides: 5, 5, 15
5 + 5 = 10
10 < 15
i hope this helps and is right! p.s. i really need brainliest :)
Answer:
21 feet
Step-by-step explanation:
pythagoreom theorem
a^2+b^2=c^2
6.5^2+20^2=c^2
42.25+400=c^2
442.25=c^2
21 feet
