Find the derivative of the following function

Mathematics

1 answer:

horrorfan [7]3 years ago

4 0

$f(x)=\sqrt{30}\to f'(x)=(\sqrt{30})'=0\\\\Used:\\\\f(x)=constans\to f'(x)=0$

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Which linear inequality represents the graph below

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Answer:

your worse nightmare MATH

Step-by-step explanation:

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3 years ago

Letter A (please show work!) thanks

jeka94

(37 1/2) /100
37.5/100
anything divided by 100 means you move the decimal point to the left two spaces
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3 years ago

At a large Midwestern university, a simple random sample of 100 entering freshmen in 1993 found that 20 of the sampled freshmen

guajiro [1.7K]

Answer:

The 90% confidence interval for the difference of proportions is (0.01775,0.18225).

Step-by-step explanation:

Before building the confidence interval, we need to understand the central limit theorem and subtraction of normal variables.

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean $\mu = p$ and standard deviation $s = \sqrt{\frac{p(1-p)}{n}}$

Subtraction between normal variables:

When two normal variables are subtracted, the mean is the difference of the means, while the standard deviation is the square root of the sum of the variances.

p1 -> 1993

20 out of 100, so:

$p_1 = \frac{20}{100} = 0.2$