2 years ago

I need help in a and b

Mathematics

1 answer:

Deffense [45]2 years ago

3 0

A.24cm
B. 246.12 I'm is the answer!!!!!

You might be interested in

What does four x plus five equal to?

emmasim [6.3K]

Step-by-step explanation:

im srry if it doesnt help...

8 0

3 years ago

What factors of 48 are multiples of 4

lorasvet [3.4K]

4, 8, 12, 16, 24, 48

8 0

3 years ago

Read 2 more answers

I need help. ASAP! Divide. (3b^3 – 10b^2 + 4) ÷ (3b – 1)

viktelen [127]

Step-by-step explanation:

try surfing how to divide a function by the long division method

3 0

3 years ago

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:

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

4 0

3 years ago

There were several sunny days this year before my birthday. Since my birthday, there have been 171717 more sunny days. My birthd

Lesechka [4]

Answer:

66 sunny days before birthday

Step-by-step explanation:

Total sunny days after birthday = 17

Total sunny days in year = 83

Birthday was not sunny

Total sunny days before birthday = 83 -17

= 66 sunny days

Read more on Brainly.in - https://brainly.in/question/6937259#readmore

4 0

3 years ago

I need help in a and b ​

I need help in a and b