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2 years ago

I need help for all those please can someone please help me

Mathematics

1 answer:

aniked [119]2 years ago

4 0

Answer:

1. positive

2. negative

3. negative

4. positive

5. -2, 2

6. 3, -3

7. -5, 5

8. 1, -1

9. -4°F

10. 2°F

11. -8 ft

12. -282 ft

13. yes. the numbers are greater than 0 and less than 1. Such as 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9. They are integers.

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An individual who has automobile insurance from a certain company is randomly selected. Let Y be the number of mov- ing violatio

olga2289 [7]

Answer:

a) $E(Y) = \sum_{i=1}^n Y_i P(Y_i)$

And replacing we got:

$E(Y) =0*0.60 +1*0.25 +2*0.1 +3*0.05 = 0.60$

b) $E(Y^2) =0^2*0.60 +1^2*0.25 +2^2*0.1 +3^2*0.05 = 1.1$

And then the expected value would be:

$E(100Y^2) = 100*1.1= 110$

Step-by-step explanation:

We assume the following distribution given:

Y 0 1 2 3

P(Y) 0.60 0.25 0.10 0.05

Part a

We can find the expected value with this formula:

$E(Y) = \sum_{i=1}^n Y_i P(Y_i)$

And replacing we got:

$E(Y) =0*0.60 +1*0.25 +2*0.1 +3*0.05 = 0.60$

Part b

If we want to find the expected value of $100 Y^2$ we need to find the expected value of Y^2 and we have:

$E(Y^2) = \sum_{i=1}^n Y^2_i P(Y_i)$

And replacing we got:

$E(Y^2) =0^2*0.60 +1^2*0.25 +2^2*0.1 +3^2*0.05 = 1.1$

And then the expected value would be:

$E(100Y^2) = 100*1.1= 110$

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2 years ago

Sarawong invests $7,371 in a savings

zvonat [6]

Answethere should be an answer key online

Step-by-step explanation:

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3 years ago

A line passes through (2, 9) and has a zero slope. Write an equation of the line satisfying the given conditions.

zubka84 [21]

Okay so for finding the equation of a line, which is a function, the equation is set to y, so you can eliminate A and B. When the slope of an equation is 0, we are saying that the y value of any point of the line is going to be the same, which is 9 from the given point (2,9).

So the answer is C. y=9

5 0

2 years ago

What number is 73% of 58?

lapo4ka [179]

73℅ of 58
= (73/100) × 58
= (73×58)/100
= 4234/100
= 42.34

7 0

3 years ago

Read 2 more answers

Yoxel buys 4 1/2 gallons of soda. 1/4of the soda he bought was Pepsi and the rest was Sprite. How many gallons of Pepsi did Yoxe

marusya05 [52]

Answer:

$4\frac{1}{4}$ gallons