Correct answer gets brainliest

Mathematics

1 answer:

fenix001 [56]3 years ago

8 0

Answer:

Step-by-step explanation:

all you gotta do is plug 1/3 onto the equation.

if you are allowed to use a calculator then use desmos. if not then break it into parts.

54*(1/3)^2

1/3*1/3=1/9

then you get: 54*1/9

then you get 54/9 which is division

final answer is 6

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4.55% probability that a randomly selected individual will take less than 5 minutes to select a shoe purchase.

Since Z > -2 and Z < 2, this outcome is not considered unusual.

Step-by-step explanation:

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.

If $Z \leq 2$ or $Z \geq 2$ , the outcome X is considered to be unusual.