there are about 11,000 birth each day in United States and the proportion of the boys born in United States is 0.152 assume that each day 100 birth randomly selected the portion of boys record

Answers

Answer 1

Answer:

15 boys selected

Step-by-step explanation:

Given

[tex]N =11000[/tex] --- The population

[tex]n = 100[/tex] --- The sample selected

[tex]p =0.152[/tex] -- The proportion of boys

Required

The expected number of boys selected

The expected number is calculated by multiplying the sample size by the proportion of boys.

So, we have:

[tex]Boys = p * n[/tex]

[tex]Boys = 0.152 * 100[/tex]

[tex]Boys = 15.2[/tex]

[tex]Boys = 15[/tex] --- approximated


Related Questions

HELP ME PLEASE I NEED HELP PLEASE

Answers

Answer:

From top to bottom:

35 - 7

-10 - -2

15 - 3

-20 - -4

25 - 5

Sorry If I am wrong

Find the value of x
A. 7
B. 8
C. 10
D. 15

Answers

answer: x= 10

Explanation:

5 x
__ = __
3 6

(cross multiple)

30 3x
__ = __

3 3

(divide 30 and 3)

x=10

An exam has 40 multiple-choice questions, each with 5 choices. Only 1 of the 5 choices for each
question is correct. If you used a table of random digits to randomly choose your answer on all
questions, about how many answers would you expect to get correct?
Select one:
O
a. 40
O
b. 0
0
C. 20
d. 8
e. 5

I will give a brilliant if the answer was correct
Please helppp​

Answers

Answer:

D.8

Step-by-step explanation:

Since your chance of success is only 1 out of 5 or rather, 20%, so

40 divided by 5 equals 8, so the answer is D.

(Of course, this is just what SHOULD happen, not what CERTAINLY can happen.)

Expected number of answers to be correct = 8.

What is probability?

Measure of the likelihood of an event happening is called Probability. Probability can be between 0 to 1. 0 means the event cannot happen, 1 indicates the specific event. The sum of the probabilities of all events in the sample space is 1.

Probability can be defined as the ratio between the number of favorable outcomes and the total number of outcomes of an event. For a trial with “n” number of results, the number of favorable outcomes can be denoted by x. The formula for calculating the probability of an event is as follows.

Probability (Event) = Favorable Outcome/Total Outcome = x/n  

Given,

Number of questions = 40

One of 5 choices is correct

then, probability of getting correct option = 1/5

Number of correct answers = 40 × 1/5 = 8

Hence, 8 answers are expected to be correct.

Learn more about probability here:

https://brainly.com/question/30034780

#SPJ6

Jim got 46 out of 60 correct on a test. What is the best estimate of the percent Jim got correct ?

Answers

Answer-

77

Step-by-step explanation:

i rounded 76.67% (which was the exact percentage of 46 out of 60)

2- 77%

Answer:

About 76.5% (77%)

Step-by-step explanation:

well start with the simple fractions. 40/60 is 2/3 which is 66.66666 repeating.

If we know it increased at least 5 more that is 45/60 which is 3/4, since 15 * 4 = 60, so 15 * 3 = 45.

We could say without getting too specific that every point will have about a 1.5 or more % increase since if it was out of 100 points every 1 question is +1 % and 50 points every question is +2 %. Since this is 60 it will be roughly about 1.6%

Ok the point is, about 76.5% (77%)

cAlCulAtOrS ExiSt SkOoL Hw

Is (3,11) a solution to the equation y= 5x-4

Answers

Yes, because 11=5 times 3 - 4

Ms. Spencer has 15 students in her class. She asks each
student how many siblings they have. She wants to see
which number of siblings is the most common in the class.
Would a dot plot or a histogram be a more appropriate way to display the
data for this situation?
O A. A histogram, because Ms. Spencer wants to show how the data
fall into different intervals or ranges.
B. A histogram, because Ms. Spencer wants to show all of the
individual data values.
O C. A dot plot, because Ms. Spencer wants to show all of the
individual data values,
O D. A dot plot, because Ms. Spencer wants to show how the data fall
into different intervals or ranges.
PREVIOUS

Answers

Answer:

A dot plot, because Ms. Spencer wants to show all individual data values.

Step-by-step explanation:

ap3x approved

if x is equal to –2, then find the value of 3x² + 5x​

Answers

Answer:

2

Step-by-step explanation:

3*(-2)to power of 2 + 5*-2

= 3*4 + 5*-2

= 12 + -10 = 2

worries qui ouch Sunday each USCIS who what eeeei such Turkish what Umpqua snuggled han

help please. 10 points yall.

Answers

A.) 2a+6b

Explanation:
multiply each term in parentheses by 2
2a+2x+3b
calculate the product
2a+6b

5. Casey's bank account offers him 2% interest every year, given by the equation
g(x)= 1.02. If Casey deposits $5,625 in his bank account, which equation
represents the amount of money that will be in his account after 2 years?

Answers

Answer:

Casey will have 5852.25 in his bank account after 2 years.

Step-by-Step Explaination:

2%=0.02

0.02*5625=112.5

112.5+5625=5737.5

0.02*5737.5=114.75

114.75+5737.5=5852.25

jorge is playing football. he carries the ball forward 52/3 yards and then moves backwards 1 foot . how far forward is the ball, in feet, from were jorge stared carring the ball.

Answers

Answer:

17 feet

Step-by-step explanation:

52/3= 17 1/3

1 foot is 1/3 of a yard

17 1/3- 1/3 = 17

1) A store sells small and large TV sets in the ratio 2:3. The total stock is 70
sets.1) How many small and large sets are in stock? 2)If the number of large
sets is increased by 8,what is the new ratio of small to big*

Answers

Answer:

(a)

[tex]Small = 28[/tex]

[tex]Large = 42[/tex]

(b)

[tex]Ratio = 14 : 25[/tex]

Step-by-step explanation:

Given

[tex]L = Large\\ S = Small[/tex]

[tex]S : L = 2 : 3[/tex]

[tex]Total = 70[/tex]

Solving (a): Number of each set.

The small set is calculated as:

[tex]Small = \frac{S}{S + T} * Total[/tex]

[tex]Small = \frac{2}{2+3} * 70[/tex]

[tex]Small = \frac{2}{5} * 70[/tex]

[tex]Small = 0.4 * 70[/tex]

[tex]Small = 28[/tex]

Using complement rule.

[tex]Large = Total - Small[/tex]

[tex]Large = 70 - 28[/tex]

[tex]Large = 42[/tex]

Solving (b): Increase large by 8.

The ratio is then calculated as:

[tex]Ratio = Small : Large + 8[/tex]

[tex]Ratio = 28 : 42 + 8[/tex]

[tex]Ratio = 28 : 50[/tex]

Divide by 2

[tex]Ratio = 14 : 25[/tex]

A person that is 5 ft tall that casts a shadow of 4 ft is standing next to a tree that is 9 ft tall. How much of a shadow will it cast?

Answers

Answer:

8 ft tall

Step-by-step explanation:

the person that is 5 ft has a shadow that is 4 foot so its 1 foot off because the direction that the sun's facing you

Which ones supplementary?

Answers

Answer:

D)

Step-by-step explanation:

Choice A is vertical angle

Choice B is complementary

Choice C is corresponding angle

1. Find the measure of the side indicated (x). Round to the nearest tenth. Show your work to support your
answer

Answers

Answer:

Is this for a Trig class?  just wondering

Step-by-step explanation:

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

we want to find the Hypotenuse (Hyp)  and are given an angle and the adjacent side (adj)  sooo use  CAH  , b/c it has all of the pieces

Cos(37) = Adj / Hyp

Cos(37) = 11 / Hyp

swap  Cos(37) and Hyp... an algebra trick you should know from college algebra or where ever you learned algebra

Hyp = 11 / Cos(37)

now solve with your handy TI 83 / 84 / 89   calculator :)  if you don't have one go get one . :D get the 89 if  you are going into engineering classes...  the 83 /84 if not. (obviously there are many many other good choices, i'm not really a calculator salesman on the side :D )

Hyp = 13.77349...

Hyp = 13.8 ( rounded to nearest 10th )  :)

Answer:

13.8

Step-by-step explanation:

cos37 = 11/x

0.79863551 = 11/x

x = 11/0.79863551 = 13.77 or 13.8


Assume we have two lines which are parallel. If one line has a slope of -1/11
what is the slope of the other line? Enter your answer as an integer or fraction
in lowest terms
Is urgent no link please

Answers

Use the two lines to make them parallel

The length of a chord is 22 cm and that chord is 5 cm from the center of the circle. What is the length of the diameter ?

Answers

Answer:

The circle's diameter is approximately 24.2 cm

Step-by-step explanation:

You can use the Pythagorean theorem to solve this, my realising that the 5cm distance of the chord represends one side of a right triangle, half the chord's length is the other side, and the hypotenuse of the two is the circle's radius.  With that we can say:

r = √(11² + 5²)

r = √(121 + 25)

r = √146

Now we can double that to get the diameter:

r = 2√146

r ≈ 24.2

You are having a wedding with 243 guests. If each
table holds 8 guests, what is the least number of tables
you must have to seat all of the guests?

Answers

The least number of tables would be 31

Can anyone help me with this all i need is an explanation on how to do it?

Answers

Answer:

x = 24

Step-by-step explanation:

Ok so basically the angles shown are vertical angles

One of the properties of vertical angles is that they are congruent

That being said we would use this equation to solve for x

120 = 5x

then you would solve for x

*isolate the variable*

step 1 divide each side by 5

120/5=24

5x/5=x

we're left with x = 24

I hope this helps and if you have anymore questions feel free to ask! :)

Which of the following variables is most likely to be used as quantitative?
Choose the correct answer below.
ZIP code
Country of birth
Flash drive capacity
Car manufacturer

Answers

Flash drive capacity. Quantitative means the quantity(the amount) of something.

Question 6 (Essay Worth 6 points) (05.03)Sue has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. Calculate the area of the polygon. Be sure to show all your work and explain your answer. Six-sided polygon that includes two isosceles right triangles, one with height and base of 25 feet, the other height and base of 8 feet, and one rectangle measuring 35 feet by 8 feet.

Answers

Answer The answer is 544

Step-by-step explanation: You can make two triangles and a rectangle. The triangle at the left top you do:

25 x 8= 200

The triangle at the bottom you do:

8 x 8= 64

The rectangle which is in the middle you do:

35 x 8= 280

Then you add all of them to get your answer:

280 + 200 + 64= 544

Hope this helped

Answer:

someone give this man branliest

Step-by-step explanation:

Brainliest for correct answer

Answers

Answer:

113.04

Step-by-step explanation:

IM SO SORRY IF ITS WRONG

The base of an ice cream cone has a radius of 4cm and the cones height is 12cm

Answers

Answer:

V=201.06

Step-by-step explanation:

V=πr2h

3=π·42·12

3≈201.06193

What is 7÷10 in fraction form?​

Answers

Answer:

7/10

Step-by-step explanation:

Answer:

7/10

Step-by-step explanation:

|y-x|,if y>x pls dont write in absolute value

Answers

Answer:

The answer is y-x

Step-by-step explanation:

Applying the rule that    |y| = y when y>0, we can plug in the values of y-x instead of y.

So, |y-x| = y-x if y>0

Marcie baked several pies. She used 4 cups of flour for the dough. How many pints of flour did she use?
I have to turn this is Immediately please ​

Answers

Answer:

well if several means 3 then she used 12 pints.

Step-by-step explanation:

3X4=12

4X4=16

5X4=20 and so on.

At a bird sanctuary, the population of bluebirds is 120 and is increasing 4% annually. How many bluebirds will there be in 8 years?

Answers

The answer is: 158 birds

4% of 120 is 4.8 birds. So the population is increasing by 4.8 each year. 4.8 x 8 years = 38.4

120 + 38.4 = 158.4

Find the median of the table 20 22 24 26

Answers

Answer:22

Step-by-step explanation:

20 20 20 22 22 24 26 26 26

22 is in the middle, which is the median.

WILL MARK BRAINLIEST
Solve for x.

60
10
20
120

Answers

Answer:

x = 10

Step-by-step explanation:

Let's draw the center of the circle S and the segments SE and SD.

SE is perpendicular to EF (as EF is tangent to circle).

That means FED + DES = 90deg

We also know that DSE = 120deg

And because the SED is an isosceles triangle, we know that angle measures for DES and SDE are equal.

DES = (180deg - 120deg) / 2 = 30deg

FED = 90deg - DES = 90deg - 30deg = 60deg

7x - 10 = 60

7x = 70

x = 10

if x = –2 ,then find the value of x³ –2x + 1​

Answers

Answer:

- 3

Step-by-step explanation:

Substitute x = - 2 into the expression , that is

(- 2)³ - 2(- 2) + 1

= - 8 + 4 + 1

= - 3

Simplify the following expression.



(3x−6)+(5x−5)
PLEASE I NEED HELP

Answers

Answer:

8x-11

Step-by-step explanation:

3x+5x=8x

-6+-5=-11

8x-11

Answer:

8x-11 hope nthisbelps sorry if im wrong

Step-by-step explanation:

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