2 years ago

What is 1/4 of 20? what is an equivalent fraction to 1/2?

Mathematics

1 answer:

Vinvika [58]2 years ago

3 0

1/4 of 20 is 5.. and 5/10, 3/6, 2/4, 6/12 are all equal to 1/2

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2 years ago

It takes Dariya 35 seconds to download 5 songs from the Internet. How can the number of seconds it would take Dariya to download

netineya [11]

Answer:

Step-by-step explanation:

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3 years ago

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Find the equation of the line<br> Use exact numbers

GaryK [48]

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2 years ago

One card is selected at random from a deck of cards. Determine the probability that card selected is a 5 or a 10?

Vesnalui [34]

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2 years ago

Construct the 95% confidence interval for the population mean using the appropriate distributions. a. A random sample of 50 peop

SSSSS [86.1K]

Answer: 95% confidence interval would be (26.01,29.39).

Step-by-step explanation:

Since we have given that

n = 50

Mean = 27.7

Standard deviation = 6.12

We need to construct 95% confidence interval for the population.

so, z = 1.96

So, it becomes,

$\bar{x}\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=27.7\pm 1.96\times \dfrac{6.12}{\sqrt{50}}\\\\=27.7 \pm 1.69\\\\=(27.7-1.69,27.7+1.69)\\\\=(26.01,29.39)$

Hence, 95% confidence interval would be (26.01,29.39).

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3 years ago