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1 year ago

jenny has 24 markers and 6 pencils.which is true statement about the comparison of the two quantities?

Mathematics

1 answer:

Brums [2.3K]1 year ago

5 0

The comparison when Jenny has 24 markers and 6 pencils is that there are 4 markers for every pencil.

<h3>What is ratio?</h3>

Ratio demonstrates how many times one number can fit into another number. Ratios contrast two numbers by ordinarily dividing them. A/B will be the formula if one is comparing one data point (A) to another data point (B).

This indicates that you're dividing information A by B. For instance, the ratio will be 5/10 if A is 5 and B is 10.

In this case, Jenny has 24 markers and 6 pencils. The ratio between the markers and the pencils will be:

= Number of markers / Number of pencil

= 24 / 6

= 4:1

This illustrates the comparison.

Note that an overview regarding the answer was given.

Learn more about ratio on:

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Answer:

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b) Standard error = 0.7826

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d) Confidence interval: (5.1469 ,7.8531)

Step-by-step explanation:

We are given the following data set for students to earn bachelor's degrees.

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a) Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{130}{20} = 6.5$

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$S.D = \sqrt{\frac{233.5}{19}} = 3.50$

b) Standard Error

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c) Point estimate for the mean time required for all college is given by the sample mean.

$\bar{x} = 6.5$

d) 90% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.10} = \pm 1.729$

$6.5 \pm 1.729(\frac{3.50}{\sqrt{20}} ) = 6.5 \pm 1.3531 = (5.1469 ,7.8531)$

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