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galina1969 [7]
3 years ago
9

NEED HELP PLEASE!!!!

Mathematics
2 answers:
andreyandreev [35.5K]3 years ago
4 0
<span>The answer is $14.88x + $8.88y
 






</span>
Fudgin [204]3 years ago
3 0
X = adult tickets
y = child tickets

14.88 for adults
8.88 for children

14.88x + 8.88y = total for x amount of adult tickets purchased and y amounts of child tickets purchased.

Ans: 14.88x + 8.88y
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Complete the chart to find the mean, variance, and standard deviation. Remember to use commas and round numbers to the nearest t
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Answer: The mean of the data is 433.75, variance of the data is 99667.19 and the standard deviation of the data is 315.7011.

Explanation:

The given data is 900, 35, 500 and 300.

The number of observation is 4.

Formula of mean is,

\text{Mean}=\frac{\text{Sum of observations}}{\text{Number of observations}}

\bar{X}=\frac{900+35+50+300}{4} =433.75

The formula of variance is given below,

\sigma^2=\frac{1}{n}\sum{(X-\bar{X})^2}

\sigma^2=\frac{398668.75}{4}

\sigma^2=99667.19

The variance of the data is 99667.19

\sigma=\sqrt{99667.19}

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The standard deviation of the data is 315.7011.

The other information or values of given chart is shown in the attached table.

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