Use the graph of y = -x2 - 2x + 3 to solve

1 answer:

7 0

Explanation:
y
+
2
x
=
3

y
=
−
2
x
+
3

When
x
=
0
, y-intercept
=
3
coordinates
(
0
,
3
)

When
y
=
0
, x-intercept
=
3
2
coordinates
(
3
2
,
0
)

Knowing two points, we can draw the graph.
graph{-2x + 3 [-10, 10, -5, 5]}
Answer

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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.

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2 years ago

What is the mean of this data set? {6, 11, 5, 2, 7} Enter your answer as a decimal in the box.

Elenna [48]

Answer:

The mean is 6.2.

Step-by-step explanation:

The "mean" is the same thing as the "average". Essentially, the question is asking for the average of the numbers.

So:

Add up all of the terms. [6 + 11 + 5 + 2 + 7] = 31

You find the average by dividing the sum of the terms (31) by the number of terms (5).

31/5 = 6.2