20 In a long jump competition, the distances achieved by a particular age group can be modelled by a normal distribution with mean 5.2m and variance 0.6 m. a In a group of 30 competitors from this age group, how many would you expect to jump further than 6m? b In a large competition, the top 5% of participants will qualify for the next round. Estimate the qualifying distance.

Q: I'm really confused on this, step by step to get the value.

A: The given expression is,

Q: How do you know what ds equals?

A: ds represent the integration with respect to arc lenght

Q: wo sailboats are sailing away from an island. Sailboat A is sailing North at 7 miles per hour and…

A: The triangle forms a right angle triangle.  we apply pythagorean theorem  c2=x2+y2Hypotenuse is the…

Q: What is a two-sided alternative? Explain in words and make a sketch illustrating this.

A: Given alternate hypothesis is two sided.In null hypothesis we define there is no statistical…

Q: im still confused, could it get a little more into detail?

A:

Q: Would be nice if help.

A:

Q: iA flashlight was left on the ground pointing at the wall 20 ft away and is turned on. In between…

A: Please refer the attached image for complete solution.

Q: The distance a moving body travels, d, varies directly with the time, t, it moves. Kamala travels…

A: The problem is a direct variation problem. In direct variation, the ratio between two variables is…

Q: Use the Pythagorean Theorem to find the length of the missing side.Then find the indicated…

A:

Q: what is meant when we say a car is traveling 75 miles over 1 hour

A: Car is traveling 75 miles over 1 hour means the speed of the car.That is, the car is travelling at a…

Q: The Quicks are driving to their vacation home. After driving for 3.25 hours, they are 250 km from…

A: Given thatQuicks After 3.25 Hour of driving    250 km away from homeAfter 4.75 hours=150 km away

Q: I asked above if you can please show the calculation using the graphing calculator, not Excel. Can…

A: It is given that maximal error (E) is 0.001 and the confidence level is 99%.

Q: Part b wanted the time not distance

A:

Q: How do you solve for domain and range?

A: We need to write down that how we can solve for domain and range.

Q: Could you please explain in words what's happening in the pictures (step wise)? Thank you.

A:

Q: What is a one-sided alternative? Explain in words and make a sketch illustrating this.

A: Hypothesis tests  are run to check a hypothesis performed on sample data from population. hypothesis…

Q: Shipping Company A *Charges a one-time $450 membership fee *Charges $1.30 per item shipped shipping…

A: Topic - Linear Equations We are given Shipping company A*Charges a one time $450 membership…

Q: The quantity a varies jointly with b, c, and d When b = 6, c = -2, and d = 7, a = 84. Find a when b…

A: to find:- value of a.

Q: Explain the steps to illustrate the graphical approach?

A: Graphical methods, These methods are typically used with quantitative measures. Graphical method is…

Q: Explain again step 3 ? I don't understand.

A: It is clear that the function f(t) has jump discontinuity at (n,0) where n is an integer.

Q: Find the gradient vector fields for the following potential functions (a) f(x,y) = x²y – xy?

A:

Rate of Change

The relation between two quantities which displays how much greater one quantity is than another is called ratio.

Slope

The change in the vertical distances is known as the rise and the change in the horizontal distances is known as the run. So, the rise divided by run is nothing but a slope value. It is calculated with simple algebraic equations as: