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grin007 [14]
3 years ago
9

When we make inferences about ONE POPULATION PROPORTION, what assumptions do we need to make? Mark all that apply. Group of answ

er choices Counts of successes and failures at least 15 each. Data is quantitative. Data is categorical. Sample Size is 30 or more. Data must be from a simple random sample. The data must have a Normal Distribution. Counts of successes and failures at least 5 each.
Mathematics
1 answer:
natita [175]3 years ago
7 0

Answer:

Data is quantitative, data is categorical, data must be from a simple random sample, the data mut have normal distribution,

Step-by-step explanation:

When we make inference about one population proportion, we must ensure that the sample was taken randomly and observations follow a normal distribution. The sample size must be as large as possible with at least 10 counts of failures an 10 counts of successes. The  individual observations must be independent. They must be quantified and categorized.

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All real numbers greater than or equal to 1
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suppose you are standing on one bank of the river. A tree on the other side of the river is known to be 150ft tall. A line from
Eva8 [605]
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3 years ago
Help? Please? Thank you!
sveta [45]

Answer:

independent: miles

dependent: minutes/hours

Step-by-step explanation:

can I see the other options for the rest?

3 0
3 years ago
If you raise 4 to the 214th power, what is the units digit of the result
Len [333]
\begin{array}{lrlll}
4^1&\boxed{4}\\
4^2&1\boxed{6}\\
4^3&6\boxed{4}\\
4^4&25\boxed{6}\\
4^5&102\boxed{4}\\
4^6&409\boxed{6}
\end{array}\impliedby \textit{see the pattern for 4?}

notice, it goes 4,6 then 4, 6 again, and so on and so on
based on whatever exponent it may have

now, you're being asked, what 214 will give? 4 or 6?
4 0
3 years ago
Based on the graph, what is the dependent variable, the equation relating the two variables, and how far will the dragonfly trav
ivann1987 [24]

Answer:

<h2>The dependent variable is distance, the equation is y = 20x, and the dragonfly will travel 480 miles.</h2>

Step-by-step explanation:

According to the graph, the dependent variable is Distance in miles, because it's on the vertical axis. Additionally, the independent variable is time in hours, because it's on the horizontal axis. However, you always put time as independent, because nothing affects time.

To find the equation, we just need to find the slope, using two points (0,0) and (2,40).

m=\frac{y_{2} -y_{1} }{x_{2} -x_{1} }=\frac{40-0}{2-0}=20

Therefore, the equation is y=20x, which shows a direct proportion between variables.

Now, in 24 hours, it would travel

y=20(24)=480

It would travel 480 miles.

Therefore, the right answer is the second choice.

8 0
3 years ago
Read 2 more answers
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