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2 years ago

Please help!!!!!!!!!!!

Mathematics

1 answer:

Effectus [21]2 years ago

4 0

I feel like it's everything except for choices b and c. I hope this helps, but I would read them again.

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Who Smokes More: Male Students or Female Students? Information on a sample of 362 college students is collected. The complete da

KatRina [158]

Answer:

difference in the proportion = 0.0452

Step-by-step explanation:

x1 = 27, n1 = 193,

p1 = 27/193

p1 = 0.1399

x2 = 16, n2 = 169,

p2 = 16/169

p2 = 0.0947

a) The best estimate for the difference in the proportion of smokers, using male proportion minus female proportion is 0.0452. Male smokes more than females in given sample.

p1 - p2 = 0.1399 - 0.0947

p1 - p2 = 0.0452

7 0

3 years ago

What is the arithmetic mean between 27 and -3

Gekata [30.6K]

Answer: 35.3

Explanation: (-3-2-1+0+1+2+....27)/30 = 35.3

6 0

2 years ago

Identify the slope and y−intercept of the line with the equation 18x − 6y = 12.

DaniilM [7]

And where is the graph? I'll change my answer.

5 0

3 years ago

Thee population of a town, P(t), is 2000 in the year 2010. Every year, it increases by 1.5%. Write an equation for the populatio

steposvetlana [31]

Given:

In 2010, the population of a town = 2000

Every year, it increase by 1.5%

To find the equation P(t) which represents the population of this town t years from 2010.

Formula

If a be the original population of a town and it increases by b% every year, after t year the population will be

$a (1+\frac{b}{100} )^{t}$

Now,

Taking, a =2000, b = 1.5 we get,

$P(t) = 2000(1+\frac{1.5}{100} )^{t}$

or, $P(t) = 2000(1+0.015)^{t}$

Hence,

The population of this town t years from 2010 P(t) = $2000(1+0.015)^{t}$ , Option D.

7 0

3 years ago

Find a ratio equivalent to 15/60

Flauer [41]

Answer:

$\large\boxed{\dfrac{15}{60}=\dfrac{5}{20}=\dfrac{3}{12}=\dfrac{1}{4}}$

$\large\boxed{\dfrac{15}{60}=\dfrac{30}{120}=\dfrac{45}{180}=\dfrac{60}{240}}$

Step-by-step explanation:

Divide the numerator and the denominator by the same number:

$\dfrac{15}{60}\\\\=\dfrac{15:5}{60:5}=\dfrac{3}{12}\\\\=\dfrac{15:3}{60:3}=\dfrac{5}{20}\\\\=\dfrac{15:15}{60:15}=\dfrac{1}{4}\\\vdots$

Multiply the numerator and the denominator by the same number:

$\dfrac{15}{60}\\\\=\dfrac{15\cdot2}{60\cdot2}=\dfrac{30}{120}\\\\=\dfrac{15\cdot3}{60\cdot3}=\dfrac{45}{180}\\\\=\dfrac{15\cdot4}{60\cdot4}=\dfrac{60}{240}\\\vdots$

7 0

2 years ago

Read 2 more answers