3 years ago

Explain to your homewok heper how5-groups help you see 6,7,8,9,10

Mathematics

1 answer:

____ [38]3 years ago

6 0

You need to write down the questions

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Solve the inequality (3x+2)/(x+1)>4

Alex

$\dfrac{3x+2}{x+1}>4$
$3x+2>4(x+1)$
$3x+2>4x+4$
$-2>x$
$x$

6 0

3 years ago

In the beginning of the study, a randomly selected group of 121 students scored an average of 252 words per minute on the readin

Alborosie

Answer:

Since the sample size is larger than 30, the cognitive psychologist can assume that the sampling distribution of M will be approximately normal.

Step-by-step explanation:

We use the central limit theorem to solve this question.

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , a sample size larger than 30 can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$