1. The county fair charges $1.50 per ticket for the rides. Jermaine bought 20 tickets for the rides and spent a total of $48.75
1 answer:
Answer: Our variable be z for fair admission and our required linear equation will be
Explanation:
Since we have given that
Cost per ticket for the rides =$1.50
Total amount she spent = $48.75
Let the total cost be y
Let the number of ride tickets be x
<u>a) Define your variable:</u>
Let the amount spent on fair admission be z
<u>b) Write a linear equation that can be used to determine the cost for ride tickets and fair admission:</u>
Our required equation will be
Here, number of ride tickets = 20
So,
So, the cost for fair admission = $18.75
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Answer:
It seems the question is incomplete as the two data sets implied from the question are not visible.
However, two data sets having identical measures of center have a difference.
Step-by-step explanation:
Let's consider these two data sets:
2, 2, 3, 5, 6, 6 and 1, 1, 1, 1, 1, 19
Both were contrived.
The most reliable among the measures of center is the mean. The mean of each is calculated by summing the data and dividing by the number of elements. In both sets, the mean is 4.
The data in the first set seem to be concentrated around the mean indeed. But for the second data set, one of them, 19, is obviously very far from the others and the mean. We need another measure to describe this: standard deviation.
Its formula is:
represents each data,
is the mean and
is the number of items.
is the deviation from the mean of each data item.
For the first data set,
For the second data set,
The low value of for the first set indicates that the items are all closer to the mean than for the second set.
Variance is the square of the standard deviation. It could also be used.