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Sliva [168]
1 year ago
13

In a research report, the researcher provides the following information: The seven men were ages 32 to 45 (M

Mathematics
1 answer:
rodikova [14]1 year ago
8 0

The answer is Demographic data

The researcher includes the following material in a research report: The seven males varied in age from 32 to 45 (M = 38), had a high school education (two had high school diplomas, one had an associate degree, three had an undergraduate degree, and one had a master's degree), and had yearly incomes ranging from $20,000 to $100,000 (M = $52,000). Demographic data refers to information on the characteristics of the individuals being investigated.

What is Demographic data?

  • Demographic analysis is the examination of a population's characteristics such as age, ethnicity, and gender.
  • Demographic data is a statistical representation of socioeconomic information such as employment, education, income, marriage rates, birth and death rates, and so on.
  • Age, race, ethnicity, gender, marital status, income, education, and occupation are some examples of demographic information. With survey questions, you may quickly and efficiently collect this sort of information.

To learn more about Demographic data visit:

brainly.com/question/7212745?

#SPJ4

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2 years ago
Help, please I can't answer it
Ivan

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5 0
3 years ago
O points
astraxan [27]

7.5 %

Step-by-step explanation:

We by finding how far from the mean the 999 volume caps are, using z score;

Z = (x – μ) / σ

Z = (999 – 998) / 7

Z = 0.143    

We use the z-table to find the confidence levels;

= 85%

= 0.85

Since we are finding proportion of bottles have volumes greater than 999

mL;

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5 0
3 years ago
the school for unfair I made 1768 on games and 978 on food sales how much money did the fun fair make on games and food sales
Svetlanka [38]
2746.
Cheater from Go Math.
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6 0
3 years ago
Read 2 more answers
Assume you have such a watch. if a minimum of 18.0% of the original tritium is needed to read the dial in dark places, for how m
laila [671]
Given that the half life of 3H is 12.3 years.

The amount of substance left of a radioactive substance with half life of t_{ \frac{1}{2} } after t years is given by

N(t)=N_0\left(\frac{1}{2} \right)^{ \frac{t}{t_{\frac{1}{2}} }

Therefore, the number of years it will take for 18% of the original tritinum to remain is given by

18 \% = 100 \% \left(\frac{1}{2} \right)^{ \frac{t}{12.3}} \\  \\ \Rightarrow\left(\frac{1}{2} \right)^{ \frac{t}{12.3}} =0.18 \\  \\ \Rightarrow\frac{t}{12.3}\ln\left(\frac{1}{2} \right)=\ln0.18 \\  \\ \Rightarrow\frac{t}{12.3}= \frac{\ln0.18}{\ln\left(\frac{1}{2} \right)} = \frac{-1.715}{-0.6931} =2.474\\ \\ \Rightarrow t=2.474(12.3)=30.4

Therefore, the number of <span>years that the time could be read at night is 30.4 years.</span>
5 0
3 years ago
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