Question 15 of 20

Mathematics

1 answer:

ArbitrLikvidat [17]1 year ago

6 0

Very simple Its pretty Blantant Its 72

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PLEASE HELP ME!!

worty [1.4K]

Answer:

Step-by-step explanation:

angles A & L are not equal

sides are not proportional <u> 4 </u> ≠ <u> 5.6 </u>

6 8

4 0

2 years ago

Read 2 more answers

PLEASE HELP ASAP! A mountain climber is at an altitude of 2.9 mi above the earth’s surface.

shutvik [7]

You can use Pythagorean theorm to solve.

$a^2 + b^2 = c^2$
C = 3959 + 2.9 = 3961.9

x = ???? = a
b = 3959
Plugin our data.
$a^2 + b^2 = c^2$
$a^2 + 3959^2 = 3961.9^2$
$a^2 + 15673681 = 15696651.61$
$a^2 = 22970.61$
$\sqrt{a^2} = sqrt{22970.61}$
$a = 151.560$
$x = 151.560$
$x = 151.6$

7 0

3 years ago

As the sample size becomes larger, the sampling distribution of the sample mean approaches a _____. a. binomial distribution b.

kkurt [141]

Answer:

c. normal probability distribution

Step-by-step explanation:

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 $s = \sqrt{\frac{p(1-p)}{n}}$