3 years ago

What are the different ways to write multiplication?

Mathematics

2 answers:

Viktor [21]3 years ago

6 0

Answer:

Distribution, equal groups, skip counting, repeated addition, and array.

Step-by-step explanation:

Allushta [10]3 years ago

5 0

• x it help leave my first like :)

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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 $s = \frac{\sigma}{\sqrt{n}}$