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laiz [17]
3 years ago
5

Consider the equation

Mathematics
1 answer:
ale4655 [162]3 years ago
4 0

Answer:

slope of line parallel to given line=slope of given line

=9/2

slope of line perpendicular to given line=‐1/slope of given line

= -2/9

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A random walker is observed to take a total of N steps, n of which are to the right (and the rest n^' are to the left). Suppose
ioda

Answer:

p = 0.635

Step-by-step explanation:

A step to the right is n and on ten different days, it was recorded to be

14, 13, 11, 12, 11, 12, 16, 16, 14, 8.

n = average of all the steps,

The average is the sum of variables divided by the number of variables

Average = (14+13+11+12+11+12+16+16+14+8)/10

Average = 12.7 steps.

σₙ² = variance of n

Variance is an average of the squared deviations from the mean.

[Σ(x - xbar)²/N]

Σ(x - xbar)² = (14-12.7)² + (13- 12.7² + (11-12.7)² + (12-12.7)² + (11-12.7)² + (12-12.7)² + (16-12.7)² + (16-12.7)² + (14-12.7)² + (8-12.7)² = 54.1

Variance = σₙ² = (54.1/10) = 5.41

standard deviation = σₙ = √(variance) = √5.41 = 2.326.

The proportion, p can be computed in two ways.

Mean = Np or standard deviation = √[Np(1-p)]

where N = total number of steps = 20

Mean = 12.7 = 20p

p = (12.7/20) = 0.635

Or

Standard deviation = 2.326 = √[20p(1-p)]

5.41 = 20p - 20p²

20p² - 20p + 5.41 = 0

Solving the quadratic equation,

p = 0.5 + 0.143i or p = 0.5 - 0.143i

not a unique or feasible solution, hence, the probability of a step to the right remains p = 0.635

Hope this Helps!!!

5 0
3 years ago
What is 2/4 written as a fraction
dusya [7]
1/2 because it becomes simplified
6 0
3 years ago
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WILL GIVE BRAINLIEST AND FOLLOW!! Last Question... A,B,C, or D
rodikova [14]
P=115-n
115-n+4.25n=358.75
3.25n=243.75
N=75
P=40
(40,75)
The answer is D
6 0
3 years ago
I only need 1 b. please no work needed thank you
Zigmanuir [339]

Answer:

standard form is x^2-3x-4=0

which is a^2+bx+c=0

so the value of a=1 , b= -3 and c= -4

5 0
3 years ago
GUYS HELP I GOT TOO MUCH TO DO CAN YOU DO ME A SOLID
MrRissso [65]

Answer:

2 radical 13

Step-by-step explanation:

3 0
2 years ago
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