3 years ago

The least common multiple of 4 and 7

Mathematics

1 answer:

shusha [124]3 years ago

5 0

The answer is 28. My answer is correct. 7, 14& 21 can't be the LCM son the answer should be 28.

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posledela

Answer:

The value of the test statistic $z = -0.6606$

Step-by-step explanation:

From the question we are told that

The high dropout rate is $\mu = 6.1$ % $= 0.061$

The sample size is $n = 1000$

The number of dropouts $x = 56$

The probability of having a dropout in 1000 people $\= x = \frac{56}{1000} = 0.056$

Now setting up Test Hypothesis

Null $H_o : p = 0.061$

Alternative $H_a : p < 0.061$

The Test statistics is mathematically represented as

$z = \frac{\= x - p}{\sqrt{\frac{p(1 -p)}{n} } }$

substituting values

$z = \frac{0.056 - 0.061}{\sqrt{\frac{0.061(1 -0.061)}{1000} } }$

$z = -0.6606$

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2 years ago

What’s the answer to 5 1/2 x ? = 10

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The answer is 1.81 repeated so like 1.81818181

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Step-by-step explanation:

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Step-by-step explanation:

They all seem to be plotted correctly in accordance with the graph

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