EASY 100 POINTS!
The distribution of the number of children per family in the United States is strongly skewed right with a mean of 2.5 children per family and a standard deviation of 1.3 children per family.

a) Without doing any calculations, which event is more likely? Explain.
Event A: Randomly selecting a family from the United States that has 3 or more children.
Event B: Randomly selecting 40 families from the United States and finding an average of 3 or more children.

b) The probability of one of the two events listed in part (a) can be calculated even though the distribution of the population is strongly skewed right. For which event can the probability be calculated? Explain.

c) Calculate the probability of the event that you selected in part (b).

Answer:

maximum- median

80-50=30

Answer:

the theoretical probability would be 20%, the experimental probability, i would need to see the table for.

good luck, i hope this helps :)

Answer:

your answer is b

Step-by-step explanation:

Answer:

Step-by-step explanation:

Here,

[tex] \sqrt{8745 \times 8745} [/tex]

= 8745 (Ans)

Question:

A population of insects, in thousands, can be modeled using the function

[tex]p(t) = 1.75(0.97)^t[/tex], where t is time in months. Which statement best

describes the population of insects?

A. The population is decaying at a rate of 3% each month.

B. The population is decaying at a rate of 25% each month.

C. The population is growing at a rate of 75% each month.

D. The population is growing at a rate of 97% each month.

Answer:

A. The population is decaying at a rate of 3% each month.

Step-by-step explanation:

Given

[tex]p(t) = 1.75(0.97)^t[/tex]

Required

True statement about the function

From the options, we can see that we are to answer the question on the basis of decay and growing rates.

An exponential form is:

[tex]y=ab^x[/tex]

Compare to [tex]p(t) = 1.75(0.97)^t[/tex]

[tex]b= 0.97\\[/tex]

If [tex]b > 1[/tex], then [tex]b = 1 + r[/tex] r represents growth rate

else, [tex]b= 1-r[/tex] r represents decay rate

Since b < 0.97:

[tex]0.97= 1-r[/tex]

[tex]r = 1 - 0.97[/tex]

[tex]r = 0.03[/tex]

[tex]r = 3\%[/tex]

[tex]r = 0.03[/tex]

Answer:

3

Step-by-step explanation:

3.34in is ans and after rounding off we can get 3

Answer:

87.95x = 52,770

600 annual passes were purchased

Answer:

x=0,10

Step-by-step explanation:

Answer: $248.68

Step-by-step explanation:

Given

Money compounded according to

[tex]\Rightarrow V=Pe^{rt}\\[/tex]

Here, P=$127

r=4.2%

t=16 years

[tex]\Rightarrow V=127e^{0.042\times 16}\\\\\Rightarrow V=127e^{0.672}=127\times 1.958\\\\\Rightarrow V=\$248.68[/tex]

Value after 16 years is $248.68

Answer: 248.69

Step-by-step explanation:

r= 4.2%

=0.042

r=4.2%=0.042

P= 127

P=127

t=16

t=16

V

=

P

e

r

t

V=Pe

rt

V

=

127

e

0.042

(

16

)

V=127e

0.042(16)

V

=

127

e

0.672

V=127e

0.672

V

=

248.685

≈

248.69

V=248.685≈248.69

Answer:

1. Reflection across the x-axis:

  1) (-2,-2)

  2) (-1,-4)

  3) (3,-4)

2. Reflect across the y-acis:

  1) (-1,-3)

  2) (-2,1)

  3) (-4,1)

Brainiest PLZZZ

Answer:

322

Step-by-step explanation:

Answer:

B) The top right choice.

Step-by-step explanation:

The graph of the equation y = - 2x + 5 is shown in figure.

Option 2 is true.

The equation of line in point-slope form passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

The equation is,

⇒ y = - 2x + 5

Now,

Since, The equation is,

⇒ y = - 2x + 5

By comparing of the slope - intercept form of the equation of line,

y = mx + b we get;

⇒ Slope = - 2

And, The y - intercept = 5

So, The graph of the equation is passes through the point (0, 5) with slope - 2.

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Answer:

If 50 students were surveyed, how many chose

chocolate?

20 students

If 80 students were surveyed, how many chose vanilla?

20 students

Step-by-step explanation:

Answer:

C is correct

Step-by-step explanation: c is correct great job

Answer:

your answer will be 0.0001042

Step-by-step explanation:

hope it helps

have a wonderful day

Answer:

Sample Response: To use the distributive property, distribute multiplication by 2 to both terms inside the parentheses. The products are 2(11) and 2(y). The equivalent expression is 22 + 2y

Step-by-step explanation:

you're welcome

Answer:

A

Step-by-step explanation:

Answer:

A) m=0

Step-by-step explanation:

Answer:

the answer is d

Step-by-step explanation:

I came to this answer with simple deduction and process of elimination.

Answer:

4

Step-by-step explanation:

Answer:

9x^8

Step-by-step explanation:

good luck

Answer:

14.04      

Step-by-step explanation:                                                                                                       :)

Answer:

7

Step-by-step explanation:

Answer:

1,3,7,21 all of those are factors of 42 and 21.

They all can go

Step-by-step explanation:

Hope this helps

The percentage difference if Jasmine had $120,000 last year and this year she has $50,000 is 41.6%.

As it is clear from the term per cent means measuring anything per hundred. For example, you get marks per 100 marks, so you get the percentage.

Given:

The last year value = $120000,

The new value of this year = $50000,

Calculate the percentage by the following formula,

Percentage difference = The new value of this year / The last year's value ×100

Substitute value

Percentage difference = 50000 / 120000 × 100

Percentage difference = 41.6%

Therefore, the percentage difference if Jasmine had $120,000 last year and this year she has $50,000 is 41.6%.

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Answer:=−10

Step-by-step explanation:

[tex]{ \rightarrow{ \sf{ \green{ \: \: \: 5(a + b)}}}} \\ \\ { \tt{ \blue{a = - 4}}} \\ { \tt{ \blue{b = - 2}}} \\ \\ { \dashrightarrow{ \sf{ \green{5( - 4 - 2)}}}} \\ \\ { \dashrightarrow{ \sf{ \green{5 \times ( - 6)}}}} \\ \\ { \dashrightarrow{ \sf{ \green{ - 30}}}}[/tex]

Answer:

yes you are correct :)

Step-by-step explanation:

The information to determine the missing coordinates is given below.

Coordinates are a pair of integers (Cartesian coordinates), or occasionally a letter and a number, that identify a certain place on a grid, often referred to as a coordinate plane.

Given;

A rectangle is drawn in the coordinate plane.

That means, each vertex has coordinates.

To find the missing vertex of a rectangle in a coordinate plane:

We should have the three known vertices.

Then use the formula,

w = t + v - u for each of the coordinates.

Therefore, the information to determine the missing coordinates is given above.

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Answer:

c is in standard form

Step-by-step explanation: hoped I helped

Answer:

im going with c anyone else

Step-by-step explanation: