The ages of the children, in years, at a birthday party are 8, 12, 10, 9, 12, 9, 11, and 9. What is
the mean age of children at the party?
Answers
Answer:
10 years
Step-by-step explanation:
Mean is the same as average so add up all the ages and divide by the number of people there:
8+12+10+9+12+9+11+9= 80
80/8=10
Answer:
10
Step-by-step explanation:
Related Questions
The National Survey on Drug Use and Health also reported that 21% of males in the same age group (12-20) are binge drinkers. Suppose that in addition to the 10 randomly chosen females, a random sample 10 males from the same age group is chosen (to a total of 20). Let the random variable Y be the total number of males and females (out of 20) who are binge drinkers. Which of the following is true regarding the random variable Y?
a. Y has a binomial distribution with n-60 and p.16
b. Y does not have a binomial distribution since p, the probability of being a binge drinker, is not the same for all the trials.
c. Y has a binomial distribution with n-60 and p .31
d. Y does not have a binomial distribution since the number of trials n is not fixed.
e. Y does not have a binomial distribution since the trials are not independent.
Answers
Answer:
Y does not have a binomial distribution since p, the probability of being a binge drinker, is not the same for all the trials.
Step-by-step explanation:
For a binomial distribution, condition required include :
A fixed number of trials ; Here the number of trials is 20 ; hence, this condition is met.
Each trial must be independent : yes, it is independent as a selected individual could either be a binge drinker or not. The outcome of each trial is either a success or a failure ; being a drinker or not.
However, the probability of being a binge drinker (that is probability of success) could vary for male and female. The probability of male being a binge drinker is 0.21 while that if female isn't specified, this probability, p value should be the same for all trials. Hence, with this value not being the same for all trials, the binomial probability condition is violated.
could someone help asap!
Answers
1b) 1
1c) 5
1d) 2
1e) 3
Let R be the region in the first quadrant bounded by the graph of y=x, the vertical line x = 9, and the x-axis, as shown in the figure.
a) Write, then evaluate (show all of your work), an integral expression that gives the volume of the solid generated when R is rotated about the x-axis.
b) Write, then evaluate (show all of your work), an integral expression that gives the volume of the solid generated when R is rotated about the vertical line x = 9.
Answers
The volume of the solid generated when R is revolved about the
x
-axis is
848
15
π
or approximately
177.6
.
The area of a circle with a radius equal to
8
−
x
3
2
at any given
x
is
π
⋅
(
8
−
x
3
2
)
2
.
= 848
15
π
≈
177.6
Please help please help please
Answers
Answer:
566
Step-by-step explanation:
566
The bottom of a swimming pool is 10 feet below the surface of the water in the pool. The surface of the water is represented by the number 0, and the bottom of the pool is represented by the number -10. The pool’s diving board is the same distance above the surface of the water as the bottom of the pool is below the surface of the water. HELP I WLL GIVE THE CROWN THNG AND MORE POINTS
Answers
Answer:
I think its +10 above surface
Amir bought a camera 5 year ago for RM1500. He plans to sell his camera at a price of RM1800. What percentage of the profit or loss?
Answers
Answer:
20% profit
Step-by-step explanation:
Hope this helps
Determine the odds of drawing two aces if two cards are removed from
regular deck.
Answers
Answer:
The chance of drawing one of the four aces from a standard deck of 52 cards is 4/52; but the chance of drawing a second ace is only 3/51, because after we drew the first ace, there were only three aces among the remaining 51 cards. Thus, the chance of drawing an ace on each of two draws is 4/52 × 3/51, or 1/221
Step-by-step explanation:
Pattern A follows the rule "subtract 3" and Pattern B follows the rule "subtract 4." Pattern A 20 17 14 11 8 Pattern B 24 20 16 12 8 Which ordered pairs are formed from combining a term in Pattern A with its corresponding term in Pattern B? Select all correct answers. (17, 20) (20, 24) (12, 11) (8, 8) (14, 20) (20, 16)
Answers
Answer:
(20,24) (17,20) and (8,8)
Hope this helps
Step-by-step explanation:
What is the area of a circle that has a circumference of 31.4 feet, also I need to show my work
Answers
Answer:
78.46020384
Step-by-step explanation:
A=C^2/4π
A= 31.4^2/4π
A = 78.46020384
profesor de Educación Física Oriente y occidente hacer Cada día los siguientes recorridos lunes 5,12 y kilómetros más de 6 koma 23 kilómetros miércoles 7,0 2 km y jueves 12,0 7 km y el viernes 15,0 1 kilómetros Cuántos kilómetros recorre cada estudiante a final de la semana datos operacion
Answers
Answer:
ask in English then only I will answer
[tex]533 {?}^{2} \times \frac{?}{?} [/tex]
Answer:
53
Step-by-step explanation:
jddhhevehevevegejwkwveehjebebsjsbs
Simplify the following expressions and remember to pay attention to the signs
( -14) - ( -53) =
(18) - ( -2) =
( -84) / ( 12) =
(25) * (2) =
Answers
Answer:
(-14)-(-53) = 39
18-(-2)=20
(-84)/(12)=-7
25*2=50
Step-by-step explanation:
two minuses are plus
when numbers are on the minuses which number is higher their sign will have an answer
Answer:
A. 39
B. 20
C. -7
D. 50
Step-by-step explanation:
A. ( -14) - ( -53) =
53 - 14 = 39
B. (18) - ( -2) =
18 + 2 = 20
C. ( -84) / ( 12) =
-84/12 = -7
D. (25) * (2) =
25(2) = 50
Caterpillar nitrogen assimilation and body mass. we explored the relationship between nitrogen assimilation and body mass (both on log scales) for data on a sample of caterpillars in Caterpillars. The Instar variable in the data codes different stages (1 to 5) of caterpillar development.
a. Fit a model to predict log nitrogen assimilation (LogNassim) using log body mass (LogMass). Report the value of for this model.
b. Fit a model to predict LogNassim using appropriate indicators for the categories of Instar. Report the value of for this model and compare it to the model based on LogMass.
c. Give an interpretation (in context) for the first two coefficients of the fitted model in (b).
d. Fit a model to predict LogNassim using LogMass and appropriate indicators for Instar. Report the value of and compare it to the earlier models.
e. Is the LogMass variable really needed in the model of part (d). Does the linear trend appear to be better when the caterpillars are in a free growth period? (Again, we are not ready to fit more complicated models, but we are looking at the plot for linear trend in the two groups.)
Answers
b B.Produce a similar plot using the log (base 10) transformed variables, LogNassim versus Log Mass. Again, comment on any patterns.
C. Would you prefer the plot in part (a) or part (b) to predict the nitrogen assimilation of caterpillars with a linear model? Fit a linear regression model for the plot you chose and write down the prediction equation.
Question 4 (2 points)
The Poconos Camp Ground charges $36 for admission and $19.25 per night stayed at the camp ground. Which function rule matches the
description given that x = number of nights and y = total cost?
Answers
Answer:
x= $19.25 + $36
y= total cost
Step-by-step explanation:
x= number of nights + admission
y= total cost
8116 / 283 pls give me a good answer for this
Answers
Answer:
28 r 192
Step-by-step explanation:
8,116/283=28 r 192
283 times 28=7,924
8,116-7,924
i hope this help some
Joelle wears a uniform to school. These are the uniform pieces she has:
Skirts Tops Sweaters
tan white blue
blue
red
white
brown blue
Each day she wears a skirt, a top, and a sweater.
How many combinations of one skirt, one top, and one sweater can she make?
A. 3
B. 8
Answers
This is correct because when I put all the combinations so this is why I licked this answer ;)
HELP ME QUICK PLSSS (BTW DUE TODAY!)
Answers
Answer:
Part A: He can use distance formula. The formula is: [tex]d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}[/tex]
Part B: 41.63 (rounded to nearest hundredth)
Step-by-step explanation:
Plug this into the formula. First, subtract the numbers in the parentheses. Then, square them. Add those totals together. Lastly, take the square root using a calculator.
Can anyone help! I can’t figure out the answer.
Answers
what
is the quistion cause can't nobody see that
Identify the coefficient and the exponent for each term of 2x^5– 3x. The coefficients are 5 and 1. The exponents are 2 and - 3. The coefficients are 2 and 3. The exponents are 5 and 0. O The coefficients are 2 and - 3. The exponents are 5 and 0. The coefficients are 2 and - 3. The exponents are 5 and 1.
Answers
Answer:
The coefficients are 2 and -3
The exponents are 5 and 1
Step-by-step explanation:
Given
[tex]2x^5 - 3x[/tex]
Required
The coefficient and exponent
First, identify the terms.
The terms are: [tex]2x^5[/tex] and [tex]- 3x[/tex]
The coefficient are the numbers written before the variables
The exponents are the power of the variables
So; for : [tex]2x^5[/tex]
[tex]Coefficient = 2[/tex]
[tex]Exponent = 5[/tex]
For [tex]- 3x[/tex]
[tex]Coefficient = -3[/tex]
[tex]Exponent = 1[/tex]
Help me pleaseeeeeeeeeee
Answers
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: True!
Explanation:
It is outside the triangle
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
What is the equation for g(x)=
Answers
Answer:
g(x) = -(x + 3)^2 - 1
Step-by-step explanation:
g(x) has a peak, and goes down on both sides, it needs a negative sign. From the vertex, when x increases by 1, y decreases by 1, and when x increases by another 1, y decreases by 3. a = -1. The function is 3 units to the left and 1 unit down. That will make h = -3 and k = -1 to the function g(x) = a(x - h)^2 + k.
Plug the values in to get the answer.
A rectangular shoebox is 15 1⁄2 inches long, 7 inches wide, and 4 1⁄2 inches tall. What is the volume of the shoebox?
Answers
Answer:
Step-by-step explanation:
V = l * w * h for a rectangular prism
15.5*7*4.5=488.25
who wanna be a goat and help a girl out by answering this thank yuuu
Answers
Answer and Step-by-step explanation:
1. A goat?
2.
So, the first triangle has a side length of 6 and x, and the bigger triangle has a side length of 10 and 11.
We divide 10 by 6 to find the scale factor, then divide 11 by that number.
10 ÷ 6 = [tex]\frac{5}{3}[/tex]
[tex]\frac{11}{\frac{5}{3} } = x\\\\\\11 * \frac{3}{5} = x\\\\\\\frac{33}{5}[/tex]= x
So, the answer is B. 6.6 because 33 divided by 5 is 6.6 (the value of x).
#teamtrees #PAW (Plant And Water)
Find the next three terms of the arithmetic sequence.
a) 9, 12, 15, ... b) 288, 252, 216, ...
Answers
Answer:
a) 18,21,24
b)180, 144, 108
Step-by-step explanation:
For a) The pattern seems to be adding up by three, so you do that to find the next three terms: 18, 21, 24
For b) The pattern is subtracting by 36, so subtract by 36 three more times to get: 180, 144, and 108
Sorry if I made any mistakes, currently on mobile.
you deposit $1600 in a bank account. find the balance after 3 years if the account pays 1.75% annual interest compounded quarterly
Answers
9514 1404 393
Answer:
$1686.05
Step-by-step explanation:
The amount with compound interest is ...
A = P(1 +r/n)^(nt)
for principal P earning annual rate r compounded n times per year for t years.
A = $1600(1 +0.0175/4)^(4·3) = $1686.05
The balance after 3 years is $1686.05.
Answer:
the answer is $1686.05
Step-by-step explanation:
:))
What is the solution to the equation 2x+4-12-20?
X=0
x=1
X=2
X=9
Answers
2^x+4 = 20+12
2^x+4 = 32
2^x+4 = 2^5
x+4 = 5
x = 1
answer is x=1
Answer:
C : x=2
Step-by-step explanation:
Edge 2022
What is the graph of the function f(x) = the quantity of x squared plus 4 x minus 12, all over x plus 6 ? (1 point)
Answers
so
(x+6)(x-2)
---------------- = x - 2
x + 6
f(x) = x -2
because
if x = -6
then y = -6 - 2 = -8
(-6,-8) is the order pair
Compare the ratio of the longest side to the shortest side.
The ratio is
(Type the ratio as a simplified fraction.)
Enter your answer in the answer box
Answers
Ratio is 10.5/4.75 = 42/19 = 2 4/19
what is the next number of 1 2 6 17 47 ?
and how?!
Answers
2 , 6 , 17 , 47 , 108 , ...
t(n) = 2n^3 - 8.5n^2 + 15.5n - 7
The Next term of sequence is 2n³ - 8.5n²+ 15.5n - 7.
What is Sequence?A sequence is an enumerated group of items in mathematics where repetitions are permitted and order is important. Similar to a set, it has members (also called elements, or terms). The length of the series is the number of elements (potentially infinite).
Given:
Sequence:1 2 6 17 47
By looking at the sequence we have the formula
t(n) = 2n³ - 8.5n²+ 15.5n - 7
So, the next term of Sequence would be
t(6)= 2(6)³ - 8.5(6)²+ 15.5(6) - 7
t(6) = 108
Hence, the next term is 108.
Learn more about Sequence here:
https://brainly.com/question/21961097
#SPJ2
For a triangle to be classified as equilateral, what must all three angles measure? Do not include the degree symbol in your
answer.
Answers
Answer:
I think the answer is 60.
PLEASE HELP !! ILL GIVE BRAINLIEST !!