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3 years ago

Mutiply (-2/3)(-1/6)

Mathematics

2 answers:

Marat540 [252]3 years ago

7 0

Answer:

-1/9

Step-by-step explanation:

if you need anymore math help go to math papa algebraic calculator and enter you problem it will solve it for you

Zanzabum3 years ago

6 0

Answer:

- 1/9

Step-by-step explanation:

So when you want to multiply fractions, you first one to simplify everything, and then multiply the top row and the bottom row:

- 2/3 * 1/6 <-- in this expression, we can simplify the 2 and the 6 to become a 1 and a 3 so:

- 1/3 * 1/3: Now we want to multiply the 1 and 1 and the 3 by 3:

1 * 1 = 1; 3 * 3 = 9;

1/9 is actually not our answer yet. We still have to add the negative to it so:

- 1/9 is your answer

Hope this helps! <3

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The output from a statistical computer program indicates that the mean and standard deviation of a data set consisting of 200 me

lesya [120]

Answer:

The limit that 97.5% of the data points will be above is $912.

Step-by-step explanation:

Problems of normally distributed samples can be 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:

$\mu = 1500, \sigma = 300$

Find the limit that 97.5% of the data points will be above.

This is the value of X when Z has a pvalue of 1-0.975 = 0.025. So it is X when Z = -1.96.

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

$-1.96 = \frac{X - 1500}{300}$

$X - 1500 = -1.96*300$

$X = 912$

The limit that 97.5% of the data points will be above is $912.

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3 years ago

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Alexxandr [17]

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3 years ago

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Answer:

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Step-by-step explanation:

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