Solve: r 5 - 6 = -1

2 answers:

7 0

If this is your question: 5r - 6 = -1 then keep reading

1) Write the question.
5r - 6 = -1

2) Bring the -6 to the other side by doing the inverse, +6 to both sides
5r = 5

3) Divide both sides by 5, to get the value of r
r = 1

The above is the answer :)

Leona [35]3 years ago

3 0

That's right, 5- 6= -1

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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.

In this problem, we have that:

$\mu = 210, \sigma = 38.6$