3 years ago

Change.83 to a fraction.

Mathematics

1 answer:

Anika [276]3 years ago

4 0

Answer:

83/100

Step-by-step explanation:

Decimals to fractions

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Gcf Of 16 and 12??plz help

Degger [83]

To find the gcf first find all the factors of 12 : 1,2,3,4,6 and 12. Then find the factors of 16: 1,2,4,8 and 16. The factors that both numbers have are 1,2 and 4. The greatest of those is 4. So the Gcf is 4.

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3 years ago

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aev [14]

Answer:

its the first one

Step-by-step explanation:

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3 years ago

assume the age of night school students is normally distributed. A simple random sample of 24 night school students had an avera

aleksley [76]

Let
n = number of data
s = standard deviation (sample)
S = standard deviation (population)

The working equations is

$\frac{(n-1) s^{2} }{ x^{2}_{right} } \ \textless \ S^{2} \ \textless \ \frac{(n-1) s^{2} }{ x^{2}_{left} }$

To find $x^{2}_{right}$ , : (1 - 0.90)/2 = 0.05

To find $x^{2}_{left}$ , : 1 - 0.05 = 0.95

Degrees of freedom = n-1 = 24 - 1 = 23

This is shown in the figure attached. Since there is no row for df=23, we interpolate. Thus,

$x^{2}_{left} = 13.093$

$x^{2}_{right} = 35.17$

Substitute all values,

$\frac{(24-1) 5.6^{2} }{ 35.17} \ \textless \ S^{2} \ \textless \ \frac{(24-1) 5.6^{2} }{ 13.093} }$

Thus the answer is,

$20.51\ \textless \ S^{2} \ \textless \ 55.09$