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scoray [572]
3 years ago
6

Why might you want to round to the nearest hundred rather than the nearest ten

Mathematics
2 answers:
Luba_88 [7]3 years ago
8 0
To obtain a more accurate answer! :)
Korolek [52]3 years ago
8 0

Answer:

Rounding to nearest Hundred means movement of last two digits in a number, while Rounding to nearest tens means movement of only last digit.

Rounding to hundred gives a number having last two digit equal to Zero, while rounding to tens gives a number having last digit equal to 0.

For example

Rounding of 243 to nearest Hundred gives 200, while Rounding to nearest ten gives 240.

⇒If number is in hundreds or thousands or in ten Thousands that is bigger number then Rounding to Nearest hundred is better than Rounding to nearest ten.

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gizmo_the_mogwai [7]

Answer:

19.35% probability that five will have completed four years of college

Step-by-step explanation:

For each individual chosen, there are only two possible outcomes. Either they have completed fourr years of college, or they have not. The probability of an adult completing four years of college is independent of any other adult. So the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

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And p is the probability of X happening.

28% of individuals

This means that p = 0.25

For a sample of 15 individuals, ages 25 and older, what is the probability that five will have completed four years of college?

This is P(X = 5) when n = 15. So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 5) = C_{15,5}.(0.28)^{5}.(0.72)^{10} = 0.1935

19.35% probability that five will have completed four years of college

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3 years ago
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Answer:

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Step-by-step explanation:

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