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3 years ago

There are 480 jellybeans in an 8-ounce jar. How many jellybeans are there per ounce in the jar?

Mathematics

2 answers:

Volgvan3 years ago

8 0

For this case, what we must do is divide the total amount of jellybeans by the total number of ounces.

For this, we use the following equation:

$r = \frac {amount\ of\ jellybeans} {number\ of\ ounces}$

Substituting values:

$r = \frac {480} {8}\\r = 60$

Answer:

There are 60 jellybeans per ounce in the jar.

Option 3

Alja [10]3 years ago

7 0

The answer would be 60. This is because 480/8=60.

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a) The 98% confidence interval would be given (0.182;0.218).

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Step-by-step explanation:

Data given and notation

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Part a

The confidence interval would be given by this formula

$\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}$

For the 98% confidence interval the value of $\alpha=1-0.98=0.02$ and $\alpha/2=0.01$ , with that value we can find the quantile required for the interval in the normal standard distribution.

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And replacing into the confidence interval formula we got:

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Part b

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Part c

If repeated samples were taken and the 98% confidence interval computed for each sample, 98% of the intervals would contain the population proportion.

Part d

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