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3 years ago

Question 2. Let X be a random variable that follows a Poisson distribution with a mean of 5.

Mathematics

2 answers:

Elan Coil [88]3 years ago

8 0

Answer:

B.50

Step-by-step explanation:

the square is cancled by the radical sign

and 5 times 5/10

50=N

50 (5/10)

250/10

so,B 50

Nadya [2.5K]3 years ago

3 0

answer : b. 50

the square is cancled by the radical sign and 5 times 5/10

50=N

50(5/10)

250/10

so, b50

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The average salary for a doctorate is 39,000 less than twice that of someone with a bachelor's degree. Combined, a people (one w

tester [92]

Answer:

doctorate salary: d = $71,000

bachelor salary: b = $55,000

Step-by-step explanation:

doctorate salary: d

bachelor salary: b

relationship between b and d: d = 2b - $39,000

Unfortunately, your "1 + 126,000" could not be correct. I'm going to assume that the total of the two salaries is $126,000. If that's the case, then:

bachelor salary + (2 times bachelor salary less $39,000) = $126,000. In symbols,

b + 2b - $39,000 = $126,000

Consolidating the 'b' terms results in 3b - $39,000 = $126,000, and so:

3b = $126,000 + $39,000 = $165,000

Dividing both sides by 3 yields the bachelor salary: b = $55,000

Then the doctoral salary is 2b - $39,000 = 2($55,000) - $39,000, or $71,000.

Check: Does b + (2b - $39,000) = $126,000? Yes.

Then the doctoral salary is d = $103,000, and the bachelor salary $29,000

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3 years ago

An element with a mass of 970 g decays by 15.1% per minute how much of the element remaining after 14 minutes

Amanda [17]

The amount of the element remaining (y) in grams after time (t) in minutes is defined by the equation y=970(1-.151)^t. Substitute t=14 into the equation and solve for y. y=970(.849)^14=98.06 rounded to two decimal places.

3 0

3 years ago

Read 2 more answers

A rectangle has a length of 20 inches. if its perimeter is 64 inches, what is the area?

zzz [600]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf 240 \: {inches}^{2} }}}}$

Step-by-step explanation:

Given,

Length of a rectangle = 20 inches

Perimeter of a rectangle = 64 inches

Area of a rectangle = ?

Let width of a rectangle be ' w ' .

First, finding the width of a rectangle

$\boxed{ \sf{perimeter = 2(l + w)}}$

plug the values

⇒ $\sf{64 = 2(20 + w)}$

Distribute 2 through the parentheses

⇒ $\sf{64 = 40 + 2w}$

Swap the sides of the equation

⇒ $\sf{40 + 2w = 64}$

Move 2w to right hand side and change it's sign

⇒ $\sf{2w = 64 - 40}$

Subtract 40 from 64

⇒ $\sf{2w = 24}$

Divide both sides of the equation by 2

⇒ $\sf{ \frac{2w}{2} = \frac{24}{2} }$

Calculate

⇒ $\sf{w = 12 \: inches}$

Width of a rectangle ( w ) = 12 inches

Now, finding the area of a rectangle having length of 20 inches and width of 12 inches

$\boxed{ \sf{area \: of \: rectangle = length \: \times \: \: width}}$

plug the values

⇒ $\sf{area \: of \: rectangle =20 \times 12 }$

Multiply the numbers : 20 and 12

⇒ $\sf{area \: of \: rectangle = 240 \: {inches}^{2} }$

Hence, Area of a rectangle = 240 inches²

Hope I helped !

Best regards!

7 0

4 years ago

Evaluate the expression 5 % (8 + 6 – 2).

Burka [1]

Answer:

12*5%=0.6

Step-by-step explanation:

8+6=14-2=12

12*5%=0.6

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3 years ago

Read 2 more answers

170 ÷15 = 15 x ______ = 170

lions [1.4K]

the answer would be 11 1/3

6 0

3 years ago