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3 years ago

Given the graph of a scatterplot and a trend line, explain how you would find the equation of the trend line.

2 answers:

5 0

To find the equation of a trend line, It is important to find the X axis and Y axis, Once x axis and y axis is found if there is an association between x axis and y axis, We use linear equation to produce the trend line. Linear regression or algorithm called as OLS (Ordinary least square). Y= mx +c

y = dependent variable, x = independent variable , constant = c , m = y2-y1/x2-x1.

Step-by-step explanation:

Scatter plot is to find association of two different variable.
Trend line is the equation between xaxis and y axis.
Prediction is best way to form equation.
Linear regression y=mx +c
Equation helps in predictive modelling between next best form.
Y is a dependent variable or example sales.
X can be n number of variable involved in the association rule.
Linear regression is starting phase of data analysis.
C = constant there is a certain point, where system has been started.
Stock market did not start from 0 it started at a certain point.

Alisiya [41]3 years ago

4 0

Answer: To determine the equation, identify two points on the trend line. Calculate the slope between the two points. Use the slope-intercept form with the slope and one of the points from the line to determine the y-intercept. Write the equation with the slope and the y-intercept.

Step-by-step explanation: Sample Response on Edge

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Please solve the equation

victus00 [196]

Answer:

1/5 + 9/5 x^2

None of the listed choices

Step-by-step explanation:

4x^2 +36 1

------------- * ----------

4x 5x

Factor the numerator

4(x^2 +9) 1

------------- * ----------

4x 5x

Cancel the 4

(x^2 +9) 1

------------- * ----------

x 5x

Multiply

(x^2 +9)

-----------------------

5x^2

We can break this into terms

x^2 9

------ + -----------------

5x^2 5x^2

1/5 + 9/5 x^2

3 0

3 years ago

Read 2 more answers

*brilliant question*<br> Given that a= 2 to the power of M, express the following in terms of A

worty [1.4K]

Answer:

A = 1/2a^4

B= 2/a^2

Step-by-step explanation:

a= 2^(m)

A =1/2*16^m= 1/2*(2^m)^4 =1/2 a^4
B =2/(∛64)^m = 2/(2^6/3)^m = 2/2^2m = 2/a^2

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3 years ago

A box is to be constructed with a rectangular base and a height of h cm. The length, l, of the box is 10 cm, and the width, w, i

77julia77 [94]

Answer:

The Quick answer is B.

Step-by-step explanation:

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3 years ago

The heights of adult men in America are normally distributed, with a mean of 69.8 inches and a standard deviation of 2.69 inches

Brilliant_brown [7]

Answer:

a) 1.93

b) 97.32% of men are SHORTER than 6 feet 3 inches

c) 2.71

d) 0.34% of women are TALLER than 5 feet 11 inches

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

a. If a man is 6 feet 3 inches tall, what is his z-score (to two decimal places)?

For man, $\mu = 69.8, \sigma = 2.69$