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3 years ago

I will give brainliest pls help

Mathematics

1 answer:

ahrayia [7]3 years ago

3 0

Answer:

$Slope= -1$

Step-by-step explanation:

Step 1: Find the slope

$Slope\ Formula: \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Plug in the numbers and solve.

$Slope= \frac{-6-(-5)}{6-5}$

$Slope= \frac{-1}{1}$

$Slope= -1$

Answer: $Slope= -1$

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3 years ago

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The cost of a ticket to an amusement park is $42 per person. for each group of up to eight people the cost per ticket decreases

zalisa [80]

This might not be correct but....
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3 years ago

A researcher is interested in the lengths of brook trout, which are known to be approximately Normally distributed with mean 80

aliya0001 [1]

Answer:

$P(X$

And we can find this probability with the normal standard distirbution or excel and we got:

$P(z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the lenghts of a population, and for this case we know the distribution for X is given by:

$X \sim N(80,5)$