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Maslowich
2 years ago
12

Pls help it’s due soon and I’m failing :(

Mathematics
2 answers:
galina1969 [7]2 years ago
6 0

Answer:

Slope is 2/3

y intercept is 0

Step-by-step explanation:

romanna [79]2 years ago
5 0

Answer:

Slope is 2/3

Y-intercept is (0, 0)

Step-by-step explanation:

y = mx + b

    m = slope

    b = y-intercept

y = 2/3x

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Joe heard from a reliable source that only 22% of people actually sleep 8 hours or more per night. You do a survey and find 58 o
Juliette [100K]

Answer:

95% Confidence interval:  (31.32%,47.04%)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 148

Number of people who sleep for 8 hours or longer, x = 58

\hat{p} = \dfrac{x}{n} = \dfrac{58}{148} = 0.3918

95% Confidence interval:

\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting the values, we get:

0.3918\pm 1.96(\sqrt{\dfrac{0.3918(1-0.3918)}{148}})\\\\ = 0.3918\pm 0.0786\\\\=(0.3132,0.4704)=(31.32\%,47.04\%)

(31.32%,47.04%)  is the required 95% confidence interval.

8 0
3 years ago
Determine which data are qualitative and which data are quantitative. Explain your reasoning
wel

Answer:

1. A. Quantitative data

B. Quantitative data

C. Qualitative data

D. Quantitative data

E. Qualitative data

F. Quantitative data

2.a. Yearly salaries: interval or ratio data

b. Employee numbers: interval or ratio data

c. Area codes : nominal data

d. The ages: interval or ratio data

e. Survey answers: ordinal data

f. IQ index: interval or ratio data

Explanation:

Qualitative data is data in the form of a quality such as a characteristic. It is usually a noun, such as whether a person is fair or dark in complexion. Quantitative data is data in form of quantity such as the amount in dollars of one's salary.

There are four levels of data measurement. They are: nominal data, ordinal data, interval data, and ratio data. Nominal and ordinal data are qualitative data while interval and ratio data are quantitative data.

4 0
2 years ago
What do the two lines mean on the sides of<br> the figure?<br><br> Need help
AnnyKZ [126]

Answer:

May i know what figure you are talking about.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
1 po
Natali5045456 [20]
The answer is A.
19/9
5 0
3 years ago
Check my answer?<br> The two triangles are similar.<br><br> What is the value of x?<br><br> 5.
Nikolay [14]
20/28 = 3x / (4x + 2)

84x = 20(4x + 2)
84x - 80x =  40
4x = 40 
x = 10

so the 2  lines are equal to  30 and  42
4 0
3 years ago
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