Answer:
Rivers change the surface of the earth. They are the agents of erosion, deposition and transportation. When rivers flow, they erode the rock with them and strong current pushes them. ... After cutting, they carry the stone, pebbles and other solid things and when the current is slow, they deposit the load on the land.
Answer:
Explanation:
Your question has one part only: <em>a) The average weight of the eggs produced by the young hens is 50.1 grams, and only 25% of their eggs exceed the desired minimum weight. If a Normal model is appropriate, what would the standard deviation of the egg weights be?</em>
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<h2><em>Solution</em></h2><h2><em /></h2>
You are given the <em>mean</em>, the reference value, and the <em>percent of egss that exceeds that minimum</em>.
In terms of the parameters of a normal distribution that is:
- <em>mean</em> =<em> 50.1g</em> (μ)
- Area of the graph above X = 51 g = <em>25%</em>
Using a standard<em> normal distribution</em> table, you can find the Z-score for which the area under the curve is greater than 25%, i.e. 0.25
The tables with two decimals for the Z-score show probability 0.2514 for Z-score of 0.67 and probabilidad 0.2483 for Z-score = 0.68.
Thus, you must interpolate. Since, (0.2514 + 0.2483)/2 ≈ 0.25, your Z-score is in the middle.
That is, Z-score = (0.67 + 0.68)/2 = 0.675.
Now use the formula for Z-score and solve for the <em>standard deviation</em> (σ):
Answer:
1. Firefighting and medical assistance
2. Education
3. Inspection
Explanation:
A fire department is an organization that delivers firefighting services. They are alternatively referred to as fire brigade, fire service or fire authority. They operate within a region or district (for easy access) and are usually public owned.
The ways in which a fire department helps communities include;
1. As the name implies, the fire department delivers firefighting services by putting out fires. They put out fires from buildings, rescue victims that are stuck in burning buildings and offer emergency medical assistance to such victims.
2. They also carry out orientation programs that educate the community by teaching them safety initiatives, fire prevention tips and what to do when there is a fire before the fire department arrives.
3. The fire department also carries out inspections on buildings so as to make sure buildings are safe and reduce the impact any fire emergency could cause.
Answer:
Varias variables demográficas juegan un papel central en el estudio de las poblaciones humanas, especialmente la fertilidad y fecundidad, la mortalidad y esperanza de vida y la migración. ...
Explanation:
Answer:
short bouts of high-intensity exercise
Explanation:
