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2 years ago

Plss answer these i’ll give you a brainliest!!!

Mathematics

1 answer:

Naddika [18.5K]2 years ago

6 0

Answer:

a. rational

b. irrational

c. rational

d. rational

Step-by-step explanation:

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2 years ago

Every week, cross country team members run more than 15 miles. Write an inequality that represents this situation. Let m represe

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What is the value of 12a^-4b^-3 for a = 2 and b = -1?

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12a^-4 * b^-3
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2 years ago

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What did the teenage yardstick say to his parents

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The number of typing errors made by a typist has a Poisson distribution with an average of seven errors per page. If more than s

Aleks [24]

Answer:

0.599 is the probability that a randomly selected page does not need to be retyped.

Step-by-step explanation:

We are given the following in the question:

The number of typing errors made by a typist has a Poisson distribution.

$\lambda =7$

The probability is given by:

$P(X =k) = \displaystyle\frac{\lambda^k e^{-\lambda}}{k!}\\\\ \lambda \text{ is the mean of the distribution}$

We have to find the probability that a randomly selected page does not need to be retyped

P(less than or equal to 7 mistakes in a page)

$P( x \leq 7) = P(x =1) + P(x=1) +...+ P(x=6) + P(x = 7)\\\\= \displaystyle\frac{7^0 e^{-7}}{0!} + \displaystyle\frac{7^1 e^{-7}}{1!} +...+ \displaystyle\frac{7^6 e^{-7}}{6!} + \displaystyle\frac{7^7 e^{-7}}{7!} \\\\= 0.59871\approx 0.599$

Thus, 0.599 is the probability that a randomly selected page does not need to be retyped.

4 0

3 years ago