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3 years ago

Can anybody please help me with this one?

Mathematics

1 answer:

zhenek [66]3 years ago

8 0

Answer:

0.81

Step-by-step explanation:

The probability that multiple independent events will occur is the product of the probabilities of each of them.

p((<2pm on day 1) & (<2pm on day 2)) = p(<2pm on day 1)×p(<2pm on day 2)

= (0.9)(0.9)

p(before 2 pm on both days) = 0.81

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Solve for xxx. Your answer must be simplified. -4+x≤9

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Answer:

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Step-by-step explanation:

-4+x≤9

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2 years ago

In a continuous series, mean(x) = 80, assumed mean(A) = 60 and<br>EF=40 then find the value of EFd.

Aneli [31]

Using the given information, the value of Σfd is 800

<h3>Calculating mean using Assumed mean </h3>

From the question, we are to determine the value of Σfd

The formula for mean, using the assumed mean method is given by

$\bar x = A + \frac{\sum fd}{\sum f}$

Where $\bar x$ is the mean

A is the assumed mean

From the given information,

$\bar x = 80$

$A = 60$

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Putting the parameters into the equation, we get

$80 = 60 + \frac{\sum fd}{40}$

$80-60 = \frac{\sum fd}{40}$

$20 = \frac{\sum fd}{40}$

$\sum fd = 20 \times 40$

$\sum fd = 800$

Hence, the value of Σfd is 800

Learn more on Mean here: brainly.com/question/20118982

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2 years ago

The simplest form of StartRoot 80 EndRoot can be written as a StartRoot b EndRoot, where a = and b =

Elden [556K]

Answer:

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Step-by-step explanation:

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√16 = 4

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Ilia_Sergeevich [38]

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