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3 years ago

I SERIOUSLY NEED HELP HERE!!!!!

Mathematics

1 answer:

Phoenix [80]3 years ago

5 0

The plot of the data and the regression line is shown in the figure below.
The best straight line is
y = 51.0686 + x 0.092x

The correlation coefficient is 0.192.

Answer: b

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Please help math I'm bad

gladu [14]

Answer:

Step-by-step explanation:

Square root of 10^2 - 8^2 is 6.

7 0

3 years ago

Refer to the previous exercise. The researchers wanted a sufficiently large sample to be able to estimate the probability of pre

Maru [420]

Answer:

The large sample n = 117.07

Step-by-step explanation:

Step(i):-

Given that the estimate error (M.E) = 0.08

The proportion (p) = 0.75

q =1-p = 1- 0.75 =0.25

Level of significance = 0.05

Z₀.₀₅ = 1.96≅ 2

Step(ii):-

The Marginal error is determined by

M.E = $\frac{Z_{0.05} \sqrt{p(1-p)} }{\sqrt{n} }$

$0.08 = \frac{2 X \sqrt{0.75(1-0.75)} }{\sqrt{n} }$

Cross multiplication , we get

$\sqrt{n} = \frac{2 X \sqrt{0.75(1-0.75)} }{0.08 }$

√n = $\frac{2 X0.4330}{0.08} = 10.825$

squaring on both sides , we get

n = 117.07

Final answer:-

The large sample n = 117.07

6 0

3 years ago

PLEASE HELP ME!!! Mari and Jack each bought a sofa from a furniture store. Mari’s sofa cost $600. She paid $200 when she bought

lutik1710 [3]

Answer:

I am solving it rn! one sec bro :)

5 0

3 years ago

Read 2 more answers

The expression 3x^3-5x^2+3x-1 has ___ terms and a constant of ____.

Andrews [41]

The expression 3x^3-5x^2+3x-1 has ___ terms and a constant of ____.
have four terms and 1 constant

5 0

4 years ago

If s(x) = x – 7 and t(x) = 4x2 – x + 3, which expression is equivalent to

Vlada [557]

The answer is If you would like to find the expression that is equivalent to (t*s)(x), you can calculate this using the following steps:

s(x) = x - 7
t(x) = 4x^2 - x + 3

(t*s)(x) = t(s(x)) = t(x - 7) = 4(x - 7)^2 - (x - 7) + 3 = 4(x - 7)^2 - x + 7 + 3

The correct result would be 4(x – 7)2 – (x – 7) + 3.

6 0

3 years ago