Answer:
The smallest sample size to satisfy the conditions is n=500.
Step-by-step explanation:
The condition for performing the inference related to the sample size is that, for all the categories, the expected success and failures in the sample are at least 10:

The largest sample size required will be for the minimum p or (1-p).
This happens to be the proportion that can play other instruments: 2%.
Then, we can calculate the minimum sample size as:

Answer:
The cost per adult is $16.
Step-by-step explanation:
Given that:
Total number of children = 20+22 = 42 children
Total number of adults = 2 + 5 = 7 adults
Total cost for both groups = $490
Cost per child = $9.00
Cost of children ticket = 9.00*42 = $378
Cost of adult tickets = 490-378 = $112
This is the cost for 7 adult tickets.
Cost per ticket =
= $16
Hence,
The cost per adult is $16.
Step-by-step explanation:
To find the volume, you need to do length x width x height.
In this case, we are going to do 6 x 20 x 26.
You get 3,120 m^3.
Hope you found this helpful!
To find the area of the square, take the length times the width, or two of the sides multiplied together. Since the perimeter is 32, the length of each side would be 32/4, because there are four sides in a square.
32/4=8, so each side is 8.
Since the area of a square is the length of the side time the length of a side, the area is 64, because 8 times 8 is 64
Hope this helps!! Can I get Brainliest? It would mean a lot!
Best option would be either B or C