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gayaneshka [121]
4 years ago
6

Select the best definitions of population and sample. A sample is the group from whom information is being collected. A populati

on is the larger group the sample represents. A population is a number that describes an entire group. A sample is a number that describes a sub-collection of that group. A sample is the complete group under study. A population is a sub-collection of members selected from the sample A sample is a group selected in such a way that each member has a known chance of being in the group. A population is the larger group the sample represents. A population is the complete group under study. A sample is the sub-collection of members of the population from which data are actually collected.
Mathematics
1 answer:
Elena L [17]4 years ago
4 0

Answer:

A population is defined as the data set which consists of all members of a specified group and the sample contains a part or a subset of a population.

For example : all the students of a school are population. But out of all, how many students play sports is a sample.

Hence, the answer is - A population is the complete group under study. A sample is the sub-collection of members of the population from which data are actually collected.

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SOMEONE PLEASE HELP!! I've tried this question twice and I just can't seem to get it
jolli1 [7]

\underline{\underline{\large\bf{Given:-}}}

\red{\leadsto}\:\textsf{Total Number of fish }\sf = 30

\red{\leadsto}\:\textsf{ Number of carp fish }\sf = 9

\underline{\underline{\large\bf{To Find:-}}}

\orange{\leadsto}\:\textsf{ Ratio of carp to sticklebacks to tench }\sf in  \:the  \:pond

\\

\underline{\underline{\large\bf{Solution:-}}}\\

\longrightarrowNumber of fish that are not carp = Total fish - number of carp fish

\begin{gathered}\implies\quad \sf 30-9 \\\end{gathered}

\begin{gathered}\implies\quad \sf 21 \\\end{gathered}

\longrightarrowSince 1/3 of remaining fish which are not carp are sticklebacks , Number of sticklebacks =

\begin{gathered}\implies\quad \sf  \frac{1}{3} \times number  \:of  \:remaining \: fish\\\end{gathered}

\begin{gathered}\implies\quad \sf  \frac{1}{3}\times 21 \\\end{gathered}

\begin{gathered}\implies\quad \sf  7 \\\end{gathered}

<u>Now</u> ,

\longrightarrowNumber of tench = Total number of fish - (Number of carp + Number of sticklebacks)

\begin{gathered}\implies\quad \sf  30-(9+7) \\\end{gathered}

\begin{gathered}\implies\quad \sf  30-16\\\end{gathered}

\begin{gathered}\implies\quad \sf  14\\\end{gathered}

\thereforeRatio of carp to sticklebacks to tench in the pond =

\begin{gathered}\quad\quad \boxed{\sf {9: 7:14}} \\\end{gathered}

3 0
2 years ago
Solve for x: 3x - 4 = 23<br><br> Answer: x =
krok68 [10]

Answer:x=9

Step-by-step explanation:

3(9)=27

27-4=23

4 0
3 years ago
Read 2 more answers
Use the given information to find the measures of all angles formed by parallel lines a and b, and transversal m. b One angle is
Anna35 [415]

Answer:∠1 = ∠3 = ∠5 = ∠7 = 77.5°

∠2 = ∠4 = ∠6 = ∠8 = 102.5°

Step-by-step explanation:

In the picture attached, the parallel lines and the transversal are shown.

8 angles are formed, where:

∠1 ≅ ∠3 ≅ ∠5 ≅ ∠7

∠2 ≅ ∠4 ≅ ∠6 ≅ ∠8

On the other hand, ∠1 + ∠2 = 180°, and ∠2 is 25° greater than ∠1, that is ∠1 + 25° = ∠2, therefore:

∠1 + ∠1 + 25° = 180°

2∠1 = 180° - 25°

∠1 = 155°/2

∠1 = 77.5°

and

∠2 = 77.5° + 25° = 102.5°

4 0
3 years ago
Read 2 more answers
Jolie sends between 22 and 23 text messages per day. Each text message costs $0.89. Suppose Jolie's cellular bill spans a period
kondor19780726 [428]

Answer:

C. $945

Step-by-step explanation:

Cost of 1 cellular bill = (number of text msgs per day) x (cost per text msg) x (number of days in billing period)

in this case, it is given that :

cost per text msg = $0.89

number of texts per day = 22 or 23

billing cycle = 6 weeks = 6 x 7 = 42 days

hence,

Cost of 1 cellular bill = (22 or 23) x $0.89 x 42 days

if she sends 22 messages,

Cost of 1 cellular bill = (22) x $0.89 x 42 days= $822.36

if she sends 23 messages,

Cost of 1 cellular bill = (2) x $0.89 x 42 days= $859.74

if we compare thse 2 numbers that we have calculated with the choices, the closest match would be C. $945. The rest are just too far away in comparison.

8 0
4 years ago
Can you help don’t understand
densk [106]
7^4 * 4^7




hope this helps
8 0
3 years ago
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