Answer:
The mean of the sampling distribution is of 215 seconds and the standard deviation is 5.
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean 
and standard deviation 
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean and standard deviation 
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
All songs
Mean 215 seconds, standard deviation 35 seconds
Sample
49
Mean 215, standard deviation 
The mean of the sampling distribution is of 215 seconds and the standard deviation is 5.
Answer:
Step-by-step explanation:
Let x represent the certain number of of subscriptions in an hour that each of them would sell so that they will end up earning the same amount.
Michelle earns a base wage of $8 per hour, as well as $1 for every subscription that she sells. This means that the total cost of selling x subscriptions in an would be
x + 8
Cody gets $3 per subscription sold, in addition to a base wage of $4 per hour. This means that the total cost of selling x subscriptions in an hour would be
3x + 4
For both of them to earn the same amount,
x + 8 = 3x + 4
3x - x = 8 - 4
2x = 4
x = 4/2 = 2
They would earn the same amount when they sell 2 subscriptions.
The amount that each would earn is
2 + 8 = $10
Well I think it can help even better because since you already solved and proved your work you know what to do for your answer.
I think
7n-2n+3p+2p
5n+5p (combine like terms)
the answer is 5n+5p
How to graph 6x + 3y = 12
explanation:
Step 1: Find x intercept: substitute 0 for y: solve for x
• 6x + 3(0) = 12
• 6x = 12
• x = 2
Step 2: Then Find y intercept: also substitute 0 for x; solve for y
• 6(0) + 3y = 12
• 3y = 12
• y = 4
So plot x and y intercepts: ( 2,0 ) and ( 0,4 ) then draw a line through the points.
———————————————————-
How to graph 3x + y = 5
explanation:
Step 1: Find x intercept: substitute 0 for y: solve for x
• 3x + 5(0) = 15
• 3x = 15
• x = 5
Step 2: Then Find y intercept: also substitute 0 for x; solve for y
• 3(0) + 5y = 15
• 5y = 15
• y = 3
plot x and y intercepts: (5,0 ) and ( 0,3) then draw a line through the points.
Hope this help:))
