3 years ago

HEY CAN ANYONE PLS ANSWER DIS MATH PROBLEM!

Mathematics

1 answer:

Tomtit [17]3 years ago

3 0

Answer:

b. y=5x+6

Step-by-step explanation:

if you wanna seek for parallel line, the gradient MUST be the same which is 5

then use y=mx+c form

$y = mx + c \\ 16 = 5(2) + c \\ c = 6$

from that

the answer is

$y = 5x + 6$

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3 years ago

Find the standard deviation for the given sample data. Round your answer to one more decimal place than is present in the origin

Tema [17]

Answer:

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Step-by-step explanation:

First we need to calculate the mean x' of the sample as:

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We sum all the scores and divide them by the number of scores.

Then, the standard deviation s is calculated as:

$s=\sqrt{\frac{(55-37.9)^2+(18-37.9)^2+(39-37.9)^2+(20-37.9)^2+(20-37.9)^2+(44-37.9)^2+(69-37.9)^2}{7-1} }\\ s=19.7$

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So, the standard deviation of the sample is 19.7

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4 years ago