Answer:
(d) 16.07
Step-by-step explanation:
Step 1
We find the mean
Formula = Sum of Terms/Number of Terms
= 160+ 215 + 195/3
= 570/3
= 190
Step 2
We find the Standard Deviation
We use the formula for Sample Standard deviation =
√Mean - x/n - 1
n = 3
= √[(160 - 190)² + (215 - 190)² + (195 - 190)²]/3 - 1
= √1550/3
= √775
= 27.83882181
Approximately = 27.84
Step 3
We find the Standard Error of the mean
The formula = Standard deviation/√n
= 27.84/√3
= 16.07
Option d is correct
Based on the information given, the standard error of the mean of these three weights is 16.07.
The mean of the numbers will be:
= (160 + 215 + 195)/3
= 190
The standard deviation will be approximately 27.84.
Lastly, the standard error will be:
= 27.84 × ✓3
= 16.07
Learn more about mean on:
https://brainly.com/question/14532771
complete the statement to describe the expression
if you had a phone you could download brainly and use a photo to search your answer
Step-by-step explanation:
Answer:
It has 4 factors and 2 terms
Step-by-step explanation:
The terms are the groups of parentheses and the factors are the variables that are inside the parentheses.I hope this helps!
How do I solve for X?
Answer:
not sure how to explain how to solve it but I believe x=11
Step-by-step explanation:
HELP PLEASE DUE IN 3 MINUTES
Answer:
164
Step-by-step explanation:
Answer:
Your answer is 164
Step-by-step explanation:
You add all the numbers and then divide by 5. And you will get 164.2 and you just round up to 164
So here is the work
149+183+149+193+147=821
821/5=164.2
164.2=164
( Someone Help Please )
Calvin bought gas for his car.
gas cost $3.25 per gallon
Calvin bought 14.2 gallons.
What was the total cost for Calvin's gas?
Express the answer as dollars.cents.
Example: 15.65 (Not the answer, just example)
Answer:
$46.14
Step-by-step explanation:
Just multiply $3.25 and 14.2.
Find the value of x if m 1= 4x + 2
Answer:
x= -1/4
Step-by-step explanation:
The value of x is -1/4 in the given equation 1=4x+2.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given equation is 1=4x+2
One equal to four times of x plus two
In the given equation x is the variable and plus is the operator.
1=4x+2
Subtract 2 from both sides to isolate the x term
1-2=4x
-1=4x
Divide both sides by 4
x=-1/4
Hence, the value of x is -1/4 in the given equation 1=4x+2.
To learn more on Equation:
https://brainly.com/question/10413253
#SPJ2
If a fair die is rolled 5 times, what is the probability, rounded to the nearest thousandth, of getting at least 2 twos?
ANSWER IS 0.196
Answer:
0.196
Step-by-step explanation:
The probability of getting at least 2 twos will be 0.66,
What is probability?Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
Probability = Number of favourable outcomes / Number of sample
Given that If a fair die is rolled 5 times, The probability of getting at least 2 twos will be calculated as,
Total outcomes = 5 x 6
Total aoutcomes = 30
Favourable oucomes = 5 x 4 = 20
Probability = 20 / 30
Probability = 0.66
Therefore, the probability of getting at least 2 twos will be 0.66.
To know more about probability follow
https://brainly.com/question/24756209
#SPJ2
Plz, help. What is the mode?
Answer:
None
Step-by-step explanation:
Mode is the number that repeats the most. All of these numbers are unique, and there is no repeats, therefore there is no mode.
Answer:
what do you mean do you just have to pic one of the answers that are not crossed
Step-by-step explanation:
Solve the equations by modeling Draw the steps using circles for the variables and squares for the numbers
1. Solve 5x - 4 = 3x + 8
A. Model
B. perform the step to have variables (circles) on only one side
C. write the resulting step
D. perform the step to have the variables (circles) alone on one side
E. write the resulting step
F. divide the variables (circles) and numbers (squares) into equal groups
G. show the value of one group
Answer:
A and D
hope this helps :)
Step-by-step explanation:
Pond Critters
Ms. Wilson sets up a pond water aquarium in the classroom. Ms. Wilson tells the class
there are five different kinds of aquatic animals in the aquarium. There are caddis fly
larvae, diving beetles, whirligig beetles, dragonflies and tadpoles.
Ms. Wilson says one-twelfth of the pond animals are dragonflies. One-third of the
animals are caddis fly larvae. One-fourth are tadpoles. There are the same number of
diving beetles as whirligig beetles. If there are six dragonflies, how many pond critters
are in the aquarium? How many caddis fly larvae, tadpoles, diving beetles and whirligig
beetles are in the aquarium? Show all your mathematical thinking.
Answer: There are 72 pond critters in the aquarium. There are 24 caddis fly larvae, 18 tadpoles, 12 diving beetles and 12 whirligig beetles in the aquarium.
Step-by-step explanation:
Given : There are caddis fly larvae, diving beetles, whirligig beetles, dragonflies and tadpoles in the aquarium
One-twelfth of the pond animals are dragonflies
One-third of the animals are caddis fly larvae.
One-fourth are tadpoles.
The same number of diving beetles as whirligig beetles.
Number of dragon flies = 6
Let the total animals are = x, dragon flies are represented by d , caddis fly larvae as c, tadpoles as t , diving beetles as b and whirligig beetles as w.
Now : x = d + c + t+ b + w
[tex]\frac{1}{12}\times x=d[/tex] (1)
[tex]\frac{1}{3}\times x=c[/tex] (2)
[tex]\frac{1}{4}\times x=t[/tex] (3)
[tex]b=w[/tex] (4)
[tex]d=6[/tex] (5)
Comparing 1 and 5
[tex]\frac{1}{12}\times x=6////x=72[/tex]
Thus pond critters are 72.
[tex]c=\frac{1}{3}\times 72=24[/tex]
[tex]t=\frac{1}{4}\times 72=18[/tex]
[tex]d=6[/tex]
Now x = d + c + t+ b + w
72 = 6+24+18+b+b (as b= w)
2b =24
b = 12
Thus w = 12.
Pls help will give the big brain award
+if you help more you get more brainliest
Answer:
56in³
Step-by-step explanation:
you can make an imaginary division and create two different prisms. the bigger prism's volume is 4×3×4=48 and the smaller prism's volume is 4×2×1=8. add up the product to get total volume of 56in³ (³ because it is volume and not area)
Classify the polynomial by degree
Answer:
Linear polynomial
Step-by-step explanation:
10 + 7x
The highest power of the variable is the degree of the polynomial.
Power of x is 1
Degree of the polynomial is 1
So, it is Linear polynomial
The base of a triangle is 4 times its height and its area is 50 cm square. the length of the base is
Answer:
20 metre.
Step-by-step explanation:
Hope This Help??
Please Mark Me Brainly!!
Mary wants to buy three tickets for a concert. She has
earned $135 and each ticket cost $50. She borrows the
rest from the bank and buys the tickets.
B) How much more money will Mary need to earn to pay
back the money she borrowed from the bank?
C) How much money will she have after she pays back
the loan she borrowed from the bank?
Answer: B: 15 Dollars
Answer: C: 0
PLEASE HELP Ramone took the SAT twice. He scored 1340
on his second try, which was 190 points
higher than his first score. Find his first score.
Answer:
1150
Step-by-step explanation:
1340-190=1150
Answer:
1530
Step-by-step explanation:
well frist you have to see that he got a lower score then his first try then you would have to add because you are trying to figure out what his frist score was. So the problem would be 1340+190=?
Four graphs are shown below: Four graphs named Graph A, Graph B, Graph C and Graph D are shown with scale along x axis from 0 to 10 at increments of 1 and scale along y axis from 0 to 10 at increments of 1 and scale along y axis from 0 to 100 at increments of 10. All the graphs have 0,18 and 1,25 and 2,27 and 3,30 and 4,32 and 5,43 and 6,55 and 7,66 and 8,78 and 9,81 and 10,89. A straight line joins 0,12 and 10,85 in Graph A. A straight line joins 0,18 and 6,100 in Graph B. A straight line joins 0,40 and 9, 100 in Graph C. A straight line joins 0, 18 and 10,40 in Graph D. Which graph best shows the line of best fit? Graph A Graph B Graph C Graph D
Answer:
GRAPH A
Step-by-step explanation:
A rat population is currently 10000. It would triple after 120 days. How many days does the population stay under 100000?
Answer:
I think the answer is 120 days
Step-by-step explanation:
After 120 days, population will be 10000 times 3 which is equal to 30000
After another 120 days, population will be 30000 times 3 which is equal to 90000 and 90000 is under 100000
hence after 240 days, the population will still stay under 100000
Answer:
120 days
Step-by-step explanation:
It will remain the same as before.
find the perimeter of triangle whose sides are 5.2cm, 7.8 cm and 4cm.
Step-by-step explanation:
Perimeter = 5.2cm + 7.8 cm + 4cm = 17 cm
find the area of a circle with a circumference of 131.95
Answer:
A=1385.51
Step-by-step explanation:
A=pir^2
C= 2pir
A= C^2/4pi
131.95^2/4pi
A= 1385.51
Answer:
Step-by-step explanation:
HELP DUE IN 10 MINS!
Are these triangles similar? Why?
A. Yes, SSS~ Postulate
B. Yes, SAS~ Postulate
C. Yes, AA~ Postulate
D. No, they are not similar.
Answer:
D. No, they are not similar
Step-by-step explanation:
Because their corresponding sides are not in proportion
PLEASE HELP! 43 POINTS
Brenda invited 32 people to her graduation party. If each person will drink about 3 cups of punch, how many gallons of punch does Brenda’s mom need to buy?
How many quarts is this equal to?
Answer:
1 gallon = 16 cups
3 cups per person
32 people
32x3=96/16=6
she needs 6 gallons
anyone got tips on how to be more socially confident?
Answer:
Hmmmm i'm not sure. I don't have much social confidence but apparently people like talking to me. I just kind of act nice and caring
Step-by-step explanation:
Answer:
Find people in the same position as you and try and make more friends people may tease you but it's because they want to break you tear you down. But, when you find that special person in your life they will act like glue and you'll be as good as new!
If y varies to x and if y=6 when , x=9 find y when x=15
Answer:
y=10
Step-by-step explanation:
Set up a proportion
x/y = 9/6 (simplified, 3/2)
15/y = 3/2
Use cross multiplication,
3y = 30
y = 10
Which of the following points does not lie on the line y = -2x +5?
A. (4-3)
B. (-2,9)
с. (3,1)
D. (-1,7)
E. (2, 1)
Answer:
C (3, 1 )
Step-by-step explanation:
To determine if a point lies on the line, substitute the x- coordinate of the point into the equation and if the value obtained equals the y- coordinate of the point then it lies on the line, otherwise not on line.
A (4 , - 3)
y = - 2(4) + 5 = - 8 + 5 = - 3 ← lies on line
B (- 2, 9 )
y = - 2(- 2) + 5 = 4 + 5 = 9 ← lies on line
C (3, 1 )
y = - 2(3) + 5 = - 6 + 5 = - 1 ≠ 1 ← not on line
D (- 1, 7 )
y = - 2(- 1) + 5 = 2 + 5 = 7 ← lies on line
E (2, 1 ) = - 2(2) + 5 = - 4 + 5 = 1 ← lies on line
Thus (3, 1 ) does not lie on the line → C
Given the system of equations, match the following items. x + 2y = 7 x - 2y = -1
Answer:
efd
Step-by-step explanation:
fsdvchrsdfg
A jar contains 3 orange balls, 3 yellow balls, and 4 red balls. Providing the ball be drawn first and is not replaced before the second is drawn. What is the probability of selecting
1. 2 orange balls
2. 2 yellow balls
3. 1 red and 1 yellow ball
1. 3/10 x 2/9
2. 3/10 x 2/9
3. 4/10 x 3/9
What is 2.98 repeating as a simplified fraction
A 20-N force acts on an object with a mass of 2.0 kg. What is the objects acceleration?
Answer:
10 N/kg
Step-by-step explanation:
F=ma
therefore,a=F/m
the price of milk has increased in year from rs.28 per liter to rs.32 per liter . find the percentage increase in the price....
please answer soon I really need it
Answer:
14.28%
Step-by-step explanation:
here's your solution
=> price of milk before = ₹28
=> price of milk after increasing = ₹32
=> increased in price = ₹32 - ₹28 = ₹4
=> now , increased percentage= 4/28*100
=> 14.28%
PLEASE I NEED HELP ASAP
Jordan has a bag of marbles and a spinner. The bag of marbles has 10 marbles in it, 6 of which are red. The spinner is divided into 4 equal sections: blue, green, red, and
yellow.
What is the probability Jordan will pick a red marble out of the bag and land on the red section when spinning the spinner?
Answer:
3/5 (6/10) chance of picking a red marble, 1/4 chance of landing on the red spinner
Step-by-step explanation:
17/20