Answer: 0.4
Step-by-step explanation:
We know that the standard deviation of the sampling distribution of mean is given by:-

Given : Standard deviation : 
Sample size : n= 25
Then, the standard deviation of the sampling distribution of mean times will be :-

Hence, the standard deviation of the sampling distribution of mean times=0.4
Answer:
Bryce is closer to the <u>roller coaster</u> as compared to the water ride.
Step-by-step explanation:
Given :
Bryce is at point (2,3)
Roller coaster is at point (7,8)
Water ride is at point (9,1)
To find whether Bryce is closer to roller coaster or the water ride.
Solution.
In order to determine the closeness of Bryce from either of the two rides, we will need to find the distance of Bryce from each of them. We can apply distance formula in order to do so.
By distance formula to find distance between two points
and
.

Distance between Bryce (2,3) and roller coaster (7,8) can be given as:




units
Distance between Bryce (2,3) and water ride (9,1) can be given as:




units
Thus, we can see that Bryce is closer to the roller coaster as compared to the water ride.
(a) 2.49 * 6 = 14.94 <== what they spent on goodie bags
(b) 150 for 8 hrs = 150/8 = 18.75 per hr
(c) 182.53 - (150 + 14.94) = 182.53 - 164.94 = 17.59...they spent 17.59 more
1840 calories. I might be wrong so don't rely on me 100%. Sorry.