All categories

2 years ago

Find the mean deviation of the set of numbers (a) 12, 6, 7, 3, 15, 10, 18,5

Engineering

2 answers:

german2 years ago

8 0

The answer is 4.25 hope that helps ☺️

kvasek [131]2 years ago

4 0

Answer:

4.25

Explanation:

The mean deviation is how far, on average, all values are from the middle. To do that, we subtract each element from the mean of the elements, take their absolute values, and then divide by the number of elements in the set. Here's the formula: $\sum\frac{|x-\mu|}{n}$

Here the mean is 9.5, the count n = 8, so the mean deviation is 4.25

You might be interested in

. A roadway is being designed capable of allowing 70 mph vehicle speed. The superelevation around one curve is 0.05 inches per i

adelina 88 [10]

The minimum radius of the curve to the vehicle to provide safe travel is 2339.2 ft

<u>Explanation:</u>

Given -

Speed allowed, v = 70mph

1 mph = 1.467 fps (feet per second)

Therefore, v = 70 X 1.467 fps

Superelevation, e = 0.05 inches/inch

Coefficient of side friction, fs = 0.09

Minimum radius of the curve, r = ?

We know,

r = v² / g ( fs + e/100 )

where,

g = acceleration due to gravity in feet

g = 32.2 lb.ft / lbf.s²

r = ( 70 X 1.467 )² / 32.2 ( 0.09 + 0.05 )

r = 2339.2 ft

Therefore, the minimum radius of the curve to the vehicle to provide safe travel is 2339.2 ft

6 0

3 years ago

6.15. In an attempt to conserve water and to be awarded LEED (Leadership in Energy and Environmental Design) certification, a 20

musickatia [10]

<u>Explanation:</u>

At temperature is $33^{\circ} C$ and relative humidity is 86% therefore, the humidity ratio is 0.0223 and the specific volume is 14.289

At temperature is $33^{\circ} C$ and Relative humidity is 40% therefore, the humidity ratio is 0.0066 and the specific volume is 13.535.

To calculate the mass of air can be calculated as follows:

$\begin{aligned}m _{1} &=\frac{ v }{ v }(1- w ) \\&=\frac{1 \times 10^{5}}{13.535}(1-0.0066) \\&=7339.49 lb / min \\v _{ a } &=\frac{ m _{1} v }{(1- w )} \\v _{ a } &=\frac{7339.49 \times 14.289}{(1-0.0223)} \\v _{ a } &=107266.0 ft ^{3} / min\end{aligned}$

Now , we going to calculate the volume,

$\begin{aligned}m _{ w } &=\frac{ v _{ a }}{ v _{ a }} w _{ a }-\frac{ v _{ i }}{ v _{ i }} w _{ i } \\&=\frac{107266.0}{14.289} \times 0.0223-\frac{100000}{13.535} \times 0.0066 \\&=118.64 lb / min\end{aligned}$

The time which is required to fill the cistern can be calculated as follows:

$Time $=\frac{\text { cistern volume }}{\text { removal water perminute volume }}$$

Now, putting the value in above formula we get,

$$\frac{\left(15 \times 10^{3} L\right) \times\left(0.0353147 ft ^{3} / L \right)}{(118.641 b / min ) \times\left(\frac{1}{62.41 lb / ft ^{3}}\right)}$\\$=279.09$ minutes\\$=4.65$ hours.$

Therefore, the hours required to fill the cistern is 4.65 hours.

3 0

2 years ago

A fluid flows steadily through a pipe with a uniform cross sectional area. The density of the fluid decreases to half its initia

Vikentia [17]

Answer:

c. V2 equals V1

Explanation:

We can answer this question by using the continuity equation, which states that:

$A_1 v_1 = A_2 v_2$ (1)

where

A1 is the cross-sectional area in the first section of the pipe

A2 is the cross-sectional area in the second section of the pipe

v1 is the velocity of the fluid in the first section of the pipe

v2 is the velocity of the fluid in the second section of the pipe

In this problem, we are told that the pipe has a uniform cross sectional area, so:

A1 = A2

As a consequence, according to eq.(1), this means that

v1 = v2

so, the velocity of the fluid in the pipe does not change.

5 0

2 years ago

Which is the correct definition of schematic? a type of computer program that project managers use to track engineers on a proje

AlekseyPX

Answer:

A detailed structure diagram

Explanation:

Schematics include blueprints and diagrams and they help people design buildings.

3 0

2 years ago

Additional scals apply to the

REY [17]

Location of the class depends on satiation

4 0

1 year ago