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LekaFEV [45]
3 years ago
8

The decimal 0.3 can be written ad which fraction

Mathematics
2 answers:
Fed [463]3 years ago
7 0
The decimal 0.3 can be written as 3/10.
victus00 [196]3 years ago
7 0

Answer: The decimal 0.3 can be written as 3/10

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3 years ago
A random variable X follows the uniform distribution with a lower limit of 670 and an upper limit of 750.a. Calculate the mean a
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You can compute both the mean and second moment directly using the density function; in this case, it's

f_X(x)=\begin{cases}\frac1{750-670}=\frac1{80}&\text{for }670\le x\le750\\0&\text{otherwise}\end{cases}

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E[X]=\displaystyle\int_{-\infty}^\infty x\,f_X(x)\,\mathrm dx=\frac1{80}\int_{670}^{750}x\,\mathrm dx=710

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The second moment is useful in finding the variance, which is given by

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