How do you determine whether the ratios are equivalent: $\frac{3}{4}\text{and}\text{}\frac{6}{7}$ ?

Zackery Ray
2022-02-10
Answered

How do you determine whether the ratios are equivalent: $\frac{3}{4}\text{and}\text{}\frac{6}{7}$ ?

You can still ask an expert for help

Ethen Welch

Answered 2022-02-11
Author has **11** answers

Solution:

or

or

or

or

asked 2021-05-14

Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type.

$\begin{array}{|ccccccc|}\hline 11.8& 7.7& 6.5& 6.8& 9.7& 6.8& 7.3\\ 7.9& 9.7& 8.7& 8.1& 8.5& 6.3& 7.0\\ 7.3& 7.4& 5.3& 9.0& 8.1& 11.3& 6.3\\ 7.2& 7.7& 7.8& 11.6& 10.7& 7.0\\ \hline\end{array}$

a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion.$[Hint.\text{}?{x}_{j}=219.5.]$ (Round your answer to three decimal places.)

MPa

State which estimator you used.

$x$

$p?$

$\frac{s}{x}$

$s$

$\stackrel{~}{\chi}$

b) Calculate a point estimate of the strength value that separates the weakest$50\mathrm{\%}$ of all such beams from the strongest $50\mathrm{\%}$ .

MPa

State which estimator you used.

$s$

$x$

$p?$

$\stackrel{~}{\chi}$

$\frac{s}{x}$

c) Calculate a point estimate of the population standard deviation ?.$[Hint:\text{}?{x}_{i}2=1859.53.]$ (Round your answer to three decimal places.)

MPa

Interpret this point estimate.

This estimate describes the linearity of the data.

This estimate describes the bias of the data.

This estimate describes the spread of the data.

This estimate describes the center of the data.

Which estimator did you use?

$\stackrel{~}{\chi}$

$x$

$s$

$\frac{s}{x}$

$p?$

d) Calculate a point estimate of the proportion of all such beams whose flexural strength exceeds 10 MPa. [Hint: Think of an observation as a "success" if it exceeds 10.] (Round your answer to three decimal places.)

e) Calculate a point estimate of the population coefficient of variation$\frac{?}{?}$ . (Round your answer to four decimal places.)

State which estimator you used.

$p?$

$\stackrel{~}{\chi}$

$s$

$\frac{s}{x}$

$x$

a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion.

MPa

State which estimator you used.

b) Calculate a point estimate of the strength value that separates the weakest

MPa

State which estimator you used.

c) Calculate a point estimate of the population standard deviation ?.

MPa

Interpret this point estimate.

This estimate describes the linearity of the data.

This estimate describes the bias of the data.

This estimate describes the spread of the data.

This estimate describes the center of the data.

Which estimator did you use?

d) Calculate a point estimate of the proportion of all such beams whose flexural strength exceeds 10 MPa. [Hint: Think of an observation as a "success" if it exceeds 10.] (Round your answer to three decimal places.)

e) Calculate a point estimate of the population coefficient of variation

State which estimator you used.

asked 2021-08-02

The rates of the two bikers if Bug goes mph faster the Ed on motorcycle and Bug travels 105 mi distance in same amount of time in which Ed travels 90 mi.

asked 2021-08-12

The value of x in $\frac{0.4}{x}=\frac{2}{4.7}$

asked 2021-12-16

The solution of the given proportion.

Given:$\frac{r}{8}=\frac{25}{40}$

Given:

asked 2021-12-13

Whether the given ratios are equivalent ratios or not.

Given:

$\frac{9}{11}\text{}{\textstyle \phantom{\rule{1em}{0ex}}}\text{and}{\textstyle \phantom{\rule{1em}{0ex}}}\text{}\frac{81}{99}$

Given:

asked 2022-01-22

Allison had $55. She spent $\frac{3}{5}$ of it and then saved the rest. How much money did Allison save?

asked 2021-08-13

To find:

The given ratio as a ratio of whole numbers using fractional notation in simplest form.

The given ratio is$7\frac{3}{5}$ hours to $1\frac{9}{10}$ hours.

The given ratio as a ratio of whole numbers using fractional notation in simplest form.

The given ratio is