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jenyasd209 [6]
3 years ago
9

Joseph wants to estimate the mean number of siblings for each student in his school. He records the number of siblings for each

of 200 randomly selected students in the school. What is the sample?
Mathematics
1 answer:
ioda3 years ago
3 0

Answer: 200 randomly selected students in the school

Step-by-step explanation:

Population refers to a total set of observation that can be made, a whole group or entire set which we desire to observe or test. While sample refers to a smaller manageble version of a population on which testing could be done. Samples should be selected randomly and should contain characteristics of the larger group.

In the case above the sample is the 200 randomly selected students in the school because because that is the selected set of people from which testing was done to draw conclusions about the whole population.

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The distance covered by one step is 2.5 feet long. how many steps would the average person take to travel 50 feet
Stels [109]
20 steps. 50 divided by 2.5.
4 0
3 years ago
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Mr Johnson, the store owner, ordered 48 boxes of jawbreakers. Each box contained 392 pieces of candy. How many lawbreakers did M
n200080 [17]

Answer:

Mr. Johnson would have ordered 18816 jaw breakers.

Step-by-step explanation:

Multiply 392 by 48

5 0
3 years ago
What is the answer to this
olasank [31]

Three times the variable m minus four is equal to fourteen.

Another way could be:

Four less than three multiplied by m is equivalent to fourteen.


The first way I put it is simpler but if you really want to impress your teacher then I suggest going with the second way.

Also if you are looking to solve the equation then it would be:

3m - 4 = 14

      +4   +4

     ------------

       3m = 18

      -----    -----

         3        3

m = 5


Hope that helped :-)

8 0
3 years ago
Can someone help me with this please??
lana66690 [7]
So start with the top one and end w the bottom
6 0
2 years ago
What is the solution for the equation StartFraction 5 Over 3 b cubed minus 2 b squared minus 5 EndFraction = StartFraction 2 Ove
wolverine [178]

Answer:

The solutions are:

b=0,\:b=4

Step-by-step explanation:

Considering the expression

  • \frac{5}{3b^3-2b^2-5}=\frac{2}{b^3-2}

Solving the expression

\frac{5}{3b^3-2b^2-5}=\frac{2}{b^3-2}

\mathrm{Apply\:fraction\:cross\:multiply:\:if\:}\frac{a}{b}=\frac{c}{d}\mathrm{\:then\:}a\cdot \:d=b\cdot \:c

5\left(b^3-2\right)=\left(3b^3-2b^2-5\right)\cdot \:2

5b^3-10=6b^3-4b^2-10

\mathrm{Switch\:sides}

6b^3-4b^2-10=5b^3-10

6b^3-4b^2-10+10=5b^3-10+10

6b^3-4b^2=5b^3

\mathrm{Subtract\:}5b^3\mathrm{\:from\:both\:sides}

6b^3-4b^2-5b^3=5b^3-5b^3

b^3-4b^2=0

Using\:the\:Zero\:Factor\:Principle: if\:\mathrm ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)

So,

b=0,b-4=0

b=0,b=4

Therefore, the solutions are:

b=0,\:b=4

4 0
3 years ago
Read 2 more answers
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