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3 years ago

A set has 62 proper subsets how many elements has it for?

Mathematics

1 answer:

MrRissso [65]3 years ago

5 0

Answer:

Step-by-step explanation:

Total number of subsets is given as

${2}^{n}$

But the subset of a set consists of the proper subsets, an empty set and the set itself.

Total number of subsets are 64

Therefore,

${2}^{n} = 64$

${2}^{n} = {2}^{6}$

Comparing both sides

$n = 6$

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Answer:

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Step-by-step explanation:

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$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 600, \sigma = 100$

What is the probability that a seed will take more than 720 hours before germinating?

This is 1 subtracted by the pvalue of Z when X = 720. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{720 - 600}{100}$

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3 years ago

A set has 62 proper subsets how many elements has it for?​

A set has 62 proper subsets how many elements has it for?