21. In 4 + In(4x - 15) = In(5x + 19)

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Ответ:

brownvester44

03.09.2021

Mathematics

The correct option is A

Step-by-step explanation:

From the question we are told that

The mean is $\mu = 0.8 \ pounds$

The standard deviation is $\sigma = 0.25 \ pounds$

Generally the the probability that a randomly selected zucchini will weigh between 0 55 pound and 13 pounds is mathematically represented as

$P(0.55 < X < 1.3) = P(\frac{0.55 - 0.8}{ 0.25} < \frac{X - \mu}{\sigma } < \frac{1.3 - 0.8}{0.25})$

=> P(0.55 < X < 1.3) = P( -1 < Z < 2 )

So looking the option of normal curves given in the question we see that it is option A that matches our interval

Zucchini weights are approximately normally distributed with mean 08 pound and standard deviation 0.

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