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2 years ago

Λ represents the average rate, and the expected number of events in a given time frame for the ____________ distribution.

Mathematics

1 answer:

enot [183]2 years ago

6 0

Answer:

The correct answer is:

Poisson (A.)

Step-by-step explanation:

A Poisson distribution is used to model the number of events occurring within a given time interval, when the average number of times that the event occurs within the time interval is given.

Lambda ( λ ) is a rate parameter in Poisson's distribution, and it is used to represent "event/time", and it simply represents the expected number of events in the interval.

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04.01 mc y-2x=-1 and 2y-x=4 choose the correct graph of the given systems of equations

ira [324]

Answer:

1st one m=0

y= 0.49875311x / cm

No horizonal asymptotes

x= 1/2 + 2.005 mcy

2nd one is

slope 1/2

y intercept (0,2)

x y

-4 0

0 2

Step-by-step explanation:

for 2

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3 years ago

NEED HELP ASAP!! NO LINKS!!! OR U WILL BE REPORTED!! WILL GIVE BRAINIEST!!

Afina-wow [57]

Answer:

Y = 6,8 X = -6,3 Z = -2, -1

Y = 9,7 X = -3,2 Z = 1,-2

Step-by-step explanation:

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3 years ago

I NEED HELP PLEASE, THANKS! :)

Elena L [17]

Answer:

First option is the right choice.

Step-by-step explanation:

$\frac{1}{\cos \left(x\right)+1}+\frac{1}{\cos \left(x\right)-1}\\\\\frac{\cos \left(x\right)-1}{\left(\cos \left(x\right)+1\right)\left(\cos \left(x\right)-1\right)}+\frac{\cos \left(x\right)+1}{\left(\cos \left(x\right)+1\right)\left(\cos \left(x\right)-1\right)}\\\\=\frac{\cos \left(x\right)-1+\cos \left(x\right)+1}{\left(\cos \left(x\right)+1\right)\left(\cos \left(x\right)-1\right)}\\\\=\frac{2cos\left(x\right)}{cos^2\left(x\right)-1}\\\\=\frac{2cos\left(x\right)}{sin^2\left(x\right)}$

$=2\cdot \frac{cos\left(x\right)}{sin\left(x\right)}\cdot \frac{1}{sin\left(x\right)}\\\\=-2cot(x)csc(x)$

Best Regards!

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3 years ago

Find the value of (– 3 /8 ) × (+8 /15). A. 11/23 B. – 1 /5 C. 11/15 D. – 1 /3

PtichkaEL [24]

(-3/8)(+8/15)

Answer will be a negative number. Whenever multiplying a - negative number * a + positive = - negative number.

(-3/8)(+8/15)

Cross out -3 and 15 . Divide by 3. -3/3,=-1 15/3

= -1/5

Cross out 8 and 8. Divide by 8.

8/8= 1 , 8/8= 1

-1/5*1/1= -1/5

Answer : -1/5

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2 years ago

Which equation represents a line that intersects the line 2y − 4x = 3? A.-2y + 4x = 1 B. 3y − 6x = 6.5 C. y − 2x = 3 D. -2y − 4x

irga5000 [103]

Convert all the equations to slope-intercept form:
$2y-4x=3 \ \ \ |+4x \\
2y=4x+3 \ \ \ |\div 2 \\
y=2x+\frac{3}{2}$

$A. \\
-2y+4x=1 \ \ \ |-4x \\
-2y=-4x+1 \ \ \ |\div (-2) \\
y=2x-\frac{1}{2} \\ \\
B. \\
3y-6x=6.5 \ \ \ |+6x \\
3y=6x+6.5 \ \ \ |\div 3 \\
y=2x+\frac{13}{6}$

$C. \\
y-2x=3 \ \ \ |+2x \\
y=2x+3 \\ \\
D. \\ 
-2y-4x=3 \ \ \ |+4x \\
-2y=4x+3 \ \ \ |\div (-2) \\
y=-2x-\frac{3}{2}$

Lines A, B and C have the same slope as the line 2y-4x=3, so they are parallel and don't intersect it.
Line D has another slope, so it intersects the line 2y-4x=3.
The answer is D.

3 0

3 years ago