2 years ago

Find the mean absolute deviation of the data: 5,8,8,10,13,14,16,22

Mathematics

1 answer:

Rama09 [41]2 years ago

4 0

Answer:

Step-by-step explanation:

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The lifetime of a machine part has a continuous distribution on the interval (0, 50) with probability density function f, whe

Strike441 [17]

Answer:

Probability that the lifetime of the machine part is less than 13 = 0.6782

Step-by-step explanation:

given that $f(x)=(10+x)^{-2}$

Normalizing the function we get

$\int_{0 }^{50}cf(x)dx=1$

$\int_{0 }^{50}c(10+x)^{-2}dx=1$

$\therefore a=\frac{1}{\int_{0 }^{50}(10+x)^{-2}dx}$

$\therefore a=12$

$P(x< 13)=\int_{0}^{13}12(10+x)^{-2}dx\\\\P(X< 13)=0.6782$

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2 years ago

Find the value of y in the equation

hichkok12 [17]

It should be y=19/8.
Is it multiple choice.

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3 years ago

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Finn is swimming at a constant speed.

Reil [10]

Answer:

31.25 seconds

Step-by-step explanation:

Examine division

11.6 + 24.4 = 36 m < 50m

and 36 + 37.2 - 73.2m > 50m

50 - 36 = 14m

14 * 23.25/37.2 = 8.75 seconds

7.25 + 15.25 + 8.75 = 31.25 seconds

so it would take him 31.25 seconds to swim 50 meters.

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1 year ago

Which expressions are equivalent to the expression 4a – 6b + 3c? a + 3(a − 2b + 3c) 4a + 3(2b + c) 2(2a − 3b + c) + c 2(2a − 3b)

Dvinal [7]

It is D because (2)(2)=4 and (2)(3)= 6

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3 years ago

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Which is NOT a multiple of 15?

PilotLPTM [1.2K]

I can’t see any answer choices so the multiples of 15 are: 15,30,45,60,75,90,105,120,135,150,165,180,195,210,225,240,255,270,285,300,315,330,345,360,375,390,405,420,435,450,465,480,495,510,525,540,555,570,585,600,615,630,645,660,675,690,705,720,735
So I guess anything but those numbers, hope this helps

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2 years ago

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