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4 years ago

Someone please help me

Mathematics

2 answers:

Tamiku [17]4 years ago

7 0

With what skskwjiejensheuw

Stella [2.4K]4 years ago

3 0

The top equation is the answer to question question 5 and the bottom equation is the answer to question 6

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Some parts of California are particularly earthquake-prone. Suppose that in one metropolitan area, 32% of all homeowners are ins

Bumek [7]

Answer:

$P(X = 0) = 0.2138$

$P(X = 1) = 0.4025$

$P(X = 2) = 0.2841$

$P(X = 3) = 0.0891$

$P(X = 4) = 0.0105$

Step-by-step explanation:

For each homeowner, there are only two possible outcomes. Either they have invested in earthquake insurance, or they have not. The probability of a home owner having invested in earthquake insurance is independent from other homeowners. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

32% of all homeowners are insured against earthquake damage.

This means that $p = 0.32$

Four homeowners are to be selected at random.

This means that $n = 4$

Find the probability distribution of X.

This is the probability of each outcome

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{4,0}.(0.32)^{0}.(0.68)^{4} = 0.2138$

$P(X = 1) = C_{4,1}.(0.32)^{1}.(0.68)^{3} = 0.4025$

$P(X = 2) = C_{4,2}.(0.32)^{2}.(0.68)^{2} = 0.2841$

$P(X = 3) = C_{4,3}.(0.32)^{3}.(0.68)^{1} = 0.0891$

$P(X = 4) = C_{4,4}.(0.32)^{4}.(0.68)^{0} = 0.0105$

6 0

3 years ago

The spinner shown is divided into 8

gizmo_the_mogwai [7]

Answer:

The probabilty that the arrow will land on a section labeled with a number greater than 3 would be 3/5

Step-by-step explanation:

Formula

P = (the number of possible outcomes) ÷ ( the number of total result)

The total number of the result = 8

The spinner shown is divided into 8 equal sections. What is the probability that the arrow will land on a section labeled with a number greater than 3

Therefore the answer is 3/5

If the answer is wrong it must be a different question

Edg : )

4 0

4 years ago

If i use elmer's glue for my fake nails will they stay

Dvinal [7]

No they will pop off very fast it’s not even worth trying

7 0

2 years ago

Read 2 more answers

A rectangle is divided into 15 identical squares arranged in three rows. What is the perimeter of the rectangle, in centimeters,

lozanna [386]

Answer:

48 cm

Step-by-step explanation:

Here, we are concerned with finding the perimeter of the rectangle.

Now, since the square has an area of 9 cm^2, it means that the squares has a side of 3 cm each since the area of a square is s^2

So now, there are 5 squares in a row, meaning in a straight stretch , left to right or right to left, there are 15 squares. So the total length here is 5 * 3 = 15 cm

Now, moving column-wise, from top to bottom, since we have 3 rows, what this means is that per column of the rows, there are 3 squares. So the total length here becomes 3 * 3 = 9 cm

So we have a rectangle 9cm by 15cm

The perimeter is thus 2(L + B) = 2(15 + 9) = 2(24) = 48 cm

6 0

3 years ago

I need this answer QUICKKKK tell me with an explanation

gogolik [260]

The answer is D, 79 hope this helps

7 0

3 years ago