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katovenus [111]
3 years ago
8

Suppose that a population parameter is 0.4 and many samples are taken from the population. If the size of each sample is 30, wha

t is the standard error of the distribution of sample proportions?
A.
0.089
B.
0.008
C.
0.141
D.
0.115
Mathematics
2 answers:
Nookie1986 [14]3 years ago
7 0

Answer:

yo whats up Popp thanks for plugging the answer homie

Mr. Goodenough aint know nothin ya heard

Step-by-step explanation:

2+2=4

alexandr402 [8]3 years ago
3 0
The answer to this question will be D
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The length of each side of a square is 3 inches more than the length of each side of a small square. The sum of the areas of the
NeX [460]

Answer:

\text{Smaller square's 15 inches, Bigger square's 18 inches}

Step-by-step explanation:

GIVEN: The length of each side of a square is 3 inches more than the length of each side of a small square. The sum of the areas of the square is 549 inches.

TO FIND: the lengths of the sides of the two squares.

SOLUTION:

let the length of side of small square be \text{x}

Area of small square =(\text{side})^2=\text{x}^2

As length of each side of bigger square is 3\text{ inches} more than the smaller square

length of side of bigger square =\text{x}+3\text{ inches}

Area of bigger square =(\text{x+3})^2

Also

Sum of areas of both square =549\text{ inch}^2

(\text{x})^2+(\text{x+3})^2=549

2\text{x}^2+6\text{x}+9=549

\text{x}^2+3\text{x}-270=0

\text{x}=15,-18

as the length of side can never be negative

\text{x}=15

length of side of smaller square =15\text{ inches}

length of side of bigger square =\text{x}+3\text{ inches}=18\text{ inches}

Hence the length of smaller and bigger square are 15\text{ inches} and 18\text{ inches} respectively.

7 0
3 years ago
To convert a temperature in degrees celsius to degrees fahrenheit multiply the celsius temperature by 9/5 and then add 32° is th
babunello [35]
A temperature in degree celcius is not equivalent to its equivalent temperature in degrees fahrenheit.
7 0
3 years ago
Please solve will make as brainlist
worty [1.4K]

Answer:

6

Step-by-step explanation:

Double negative = positive

6 0
3 years ago
Read 2 more answers
A roller coaster has four cars each with the same number of seats. these are 21 passengers seated in the roller coaster, but 3 s
belka [17]

Given:

Number of passengers seated in the roller coaster = 21

Empty seats = 3

Number of cars in roller coaster = 4 (each with the same number of seats)

To find:

An equation that can be used to determine the number of seats in each car.

Solution:

Let s be the number of seats in each car.

Total number of seats in 4 cars = 4s

Using the given information,

Total number of seats = Occupied seated + Empty seats

                                   = 21 + 3

                                   = 24

Now, the required equation is

4s=24

Therefore, the required equation is 4s=24.

Divide both sides by 4.

s=\dfrac{24}{4}

s=6

Therefore, the number of seats in each car is 6.

6 0
3 years ago
Help i need the answer idk what or how to do this
natta225 [31]
14^(7x) = 17^(-8-x)

Take the log of both sides:

7x*log 14 = -(8+x)*log 17, or 7x^log 14 = -8*log 17 - x*log 17.

Grouping the x terms, we get x(7*log 14 + log 17)= -8*log 17

Then:
              -8*log 17
x= --------------------------   (answer)
      7*log 14 + log 17
6 0
3 years ago
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