Answer:

Step-by-step explanation:
-Let x be the sample size and n the population size
-The conditions for a one-sample proportion z-test are:
-The sample is randomly selected from the population.
-The sample size is greater than or equal to ten times the population size:

-The expectation np is greater than or equal to 10:

Answer:
-30
Step-by-step explanation:
In g(8) the 8 = n. So, substitute 8 in for n in the expression -4n + 2
g(8) = -4(8) + 2 = -32 + 2 = -30
I think it's B my dude
925-400=525
525/8=65.625
65.625*100= $6,562.50
Answer:
Piano Play has the better deal
Step-by-step explanation:
Piano Play has the better deal because it has a lower unit rate
Make Music’s unit rate is 52.5 when you divide $525 by 10 hours
Piano Play’s unit rate is $45 when you divide $540 by 12 hours
2x<2
_ __
2 2
x<1
hope this helps