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4 years ago

Two samples of fish from a pond were analyzed. The second sample was taken six months after the first sample.

Mathematics

2 answers:

Virty [35]4 years ago

8 0

Answer:

B,D and E

Step-by-step explanation:

i just got it right

dsp734 years ago

7 0

Answer:B, D, E

Step-by-step explanation:

i just did it

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What is the the slope that passes through the points (4,-7) and (9,1)

bulgar [2K]

Answer:

8/5

Step-by-step explanation:

We can use the formula for finding slope for this: $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$\frac{1 - (-7)}{9 - 4}$

$\frac{8}{5}$

The answer would be 8/5

3 0

3 years ago

Read 2 more answers

If f(x)=x+7 and g(x)=2x-3 what is (f-g)(x)

aalyn [17]

Answer:

-x + 10

Step-by-step explanation:

(x + 7) - (2x-3)

x + 7 - 2x - 3

x - 2x

-x + 7 + 3

-x + 10

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3 years ago

In 2013 the population of Indonesia was 200 million. The population was increasing by 2.3% per year. What will the population of

Andre45 [30]

Just multiply and you have the answer

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2 years ago

Write the decimal 0.1 repeating as a fraction in simplest form.

andreyandreev [35.5K]

0.1 repeating as a fraction is 1/9

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3 years ago

Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate

yKpoI14uk [10]

Answer:

a) 0.5588

b) 0.9984

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 24

Standard Deviation, σ = 6.4

We are given that the distribution of score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P(score between 20 and 30)

$P(20 \leq x \leq 30) = P(\displaystyle\frac{20 - 24}{6.4} \leq z \leq \displaystyle\frac{30-24}{6.4}) = P(-0.62 \leq z \leq 0.94)\\\\= P(z \leq 0.94) - P(z < -0.62)\\= 0.8264 - 0.2676 = 0.5588 = 55.88\%$

$P(20 \leq x \leq 30) = 55.88\%$

b) Sampling distribution

Sample size, n = 22

The sample will follow a normal distribution with mean 24 and standard deviation,

$s = \dfrac{\sigma}{\sqrt{n}} = \dfrac{6.4}{\sqrt{22}} =1.36$

c) P(mean score of sample is between 20 and 30)

$P(20 \leq x \leq 30) = P(\displaystyle\frac{20 - 24}{1.36} \leq z \leq \displaystyle\frac{30-24}{1.36}) = P(-2.94 \leq z \leq 4.41)\\\\= P(z \leq 4.41) - P(z < -2.94)\\= 1 - 0.0016 = 0.9984 = 99.84\%$

$P(20 \leq x \leq 30) =99.84\%$

5 0

4 years ago