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densk [106]
3 years ago
8

A university's freshman class has 10000 students. 2500 of those students are majoring in Engineering. What percentage of the fre

shman class are Engineering majors?
Mathematics
2 answers:
Musya8 [376]3 years ago
8 0

Answer:

25%

Step-by-step explanation:

2500*4 = 10000

10000/4 = 2500

its 1/4 of the students

25%

zhuklara [117]3 years ago
3 0
10000 students is 100%
2500 students is x%

2500x100=250000
250000/10000= 25

the answer is 25%

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Answer:

The length of the interval during which no messages arrive is 90 seconds long.

Step-by-step explanation:

Let <em>X</em> = number of messages arriving on a computer server in an hour.

The mean rate of the arrival of messages is, <em>λ</em> = 11/ hour.

The random variable <em>X</em> follows a Poisson distribution with parameter <em>λ</em> = 11.

The probability mass function of <em>X</em> is:

P(X=x)=\frac{e^{-11}11^{x}}{x!};\ x=0,1,2,3....

It is provided that in <em>t</em> hours the probability of receiving 0 messages is,

P (X = 0) = 0.76

Compute the value of <em>t</em> as follows:

P(X=0)=\frac{e^{-11\times t}(11\times t)^{0}}{0!}\\0.76=e^{-11\times t}\\\ln(0.76)=-11\times t\\t=-\frac{\ln(0.76)}{11} \\=0.025\ hours\\\approx90\ seconds

Thus, the length of the interval during which no messages arrive is 90 seconds long.

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3 years ago
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Answer:

7x+ 14

Step-by-step explanation:

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Each square below represents one whole. A square divided in 25 equal parts, all 25 of which are shaded Another square divided in
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2 years ago
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2 years

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