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3 years ago

Miss sim traveled 42 countries in 60 days at this rate how many countries would you travel in 40 days

Mathematics

2 answers:

Temka [501]3 years ago

4 0

First, let's make an attempt to find the unit rate:

42/60 = 14/20

14/20 = 7/10

7/10 is close enough, because 40 is a multiple of 10.

Because 40/10 = 4, we'll have to multiply both sides of the fraction by 10:

7*4/10*4

28/40

Miss Sim will travel 28 countries in 40 days

eduard3 years ago

3 0

Miss sim would travel 28 in 40 days

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4 years ago

If a procedure meets all of the conditions of a binomial distribution except the number of trials is not fixed, then the geomet

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Answer:

The probability is 0.0428

Step-by-step explanation:

First, let's remember that the binomial distribution is given by the formula:

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However, the problem tells us that when there isn't a number of trials fixed, we can use the geometric distribution and the formula for getting the first success on the xth trial becomes:

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The problem asks us to find the probability of the first success on the 4th trial (given that the first subject to be a universal blood donor will be the fourth person selected)

Using this formula with the parameters given, we have:

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3 years ago

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3 years ago

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Answer:

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Step-by-step explanation:

The complete question is:

Use a t-distribution to answer this question. Assume the samples are random samples from distributions that are reasonably normally distributed, and that a t-statistic will be used for inference about the difference in sample means. State the degrees of freedom used. Find the proportion in a t-distribution less than -1.4 if the samples have sizes 1 = 12 and n 2 = 12 . Enter the exact answer for the degrees of freedom and round your answer for the area to three decimal places. degrees of freedom = Enter your answer; degrees of freedom proportion = Enter your answer; proportion

Solution:

The information provided is:

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*Use a <em>t</em>-table.

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