A pack of 6 red pens cost £2.76 what is the price per pen

Mathematics

2 answers:

jeyben [28]3 years ago

6 0

It’s £2.76 divided by 6 and it will equal £0.46

butalik [34]3 years ago

5 0

The price per pen would be 0.46 and here’s the work - hope this helped :)

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Please help!! Thanks in advance :)

Alisiya [41]

Answer:

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Step-by-step explanation:

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side b = 15

8 x 15 = 120

120/2 = 60

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ohaa [14]

Answer:

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Step-by-step explanation:

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

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

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