Anne bought 3 hats for $19.50. which equation could be used to find the cost of each equation?
2 answers:
Answer:
3h = 19.50
Step-by-step explanation:
First lets define the price of each hat as the variable h.
Next we know that there are 3 hats so we can write that variable as 3h
We also know that the cost of all 3 hats was $19.50. This means that we can set each side of this equation equal to each other.
This gives us the equation 3h = 19.50
If you were to solve for h, you would get
Which would simplify to
h = 6.50
This means that each hat costs $6.50
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Answer:
The sampling distribution of is:
.
Step-by-step explanation:
According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.
The mean of this sampling distribution of sample proportion is:
The standard deviation of this sampling distribution of sample proportion is:
The study was conducted using the data from 15,000 students.
Since the sample size is so large, i.e. <em>n</em> = 15000 > 30, the central limit theorem is applicable to approximate the sampling distribution of sample proportions.
So, the sampling distribution of is:
.