It cost Benjamin $1.35 to send 9 text messages how much would it cost to send 118 text messages

Mathematics

1 answer:

Allushta [10]2 years ago

3 0

Answer:

it costs $17.7

Step-by-step explanation:

1.35/9 is 0.15

0.15 * 118 = 17.7

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To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

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Central Limit Theorem

The Central Limit Theorem estabilishes 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 $s = \frac{\sigma}{\sqrt{n}}$ .