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Q: How do you find mid point when class interval and ffrequency is given?
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What equals to the constant velocity needed to cover the given displacement in a given time interval?

The required velocity is the given displacement/the given time intervalin the direction from the starting point to the end point.

What is the class mark of 90-110 group?


What is the number of waves length that pass a point a given time interval?

The number of wavelengths that pass a point in a given time interval is determined by the wave's frequency and the speed of the wave. It can be calculated by dividing the speed of the wave by the wavelength. This relationship is represented by the equation: Number of wavelengths = wave speed / (frequency * time).

What is the sum of the product of the frequencies and the square of the class marks (ΣfX²60,55,40,48,52,36,50?

Step 1: Find the midpoint of each interval. Step 2: Multiply the frequency of each interval by its mid-point. Step 3: Get the sum of all the frequencies (f) and the sum of all the fx. Divide 'sum of fx' by 'sum of f ' to get the mean. Determine the class boundaries by subtracting 0.5 from the lower class limit and by adding 0.5 to the upper class limit. Draw a tally mark next to each class for each value that is contained within that class. Count the tally marks to determine the frequency of each class. What is this? The class interval is the difference between the upper class limit and the lower class limit. For example, the size of the class interval for the first class is 30 – 21 = 9. Similarly, the size of the class interval for the second class is 40 – 31 = 9.

Why interval estimates are preferred over point estimates?

Interval estimates are generally to be preferred over point estimate

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What is the hello interval?

The 'hello interval' is the time between hello packets, set in seconds as a parameter between two numbers, in OSPF routing timer protocols. The hello interval is the contacting-hello exchange between point A and Point B in computing, where a message is sent via an interface to a website or other computer point and returned to the user. Read about configuring routing timers for 'hello interval' and 'dead interval'.

What is the difference between a line and an interval?

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What is the speed of an object at a given moment?

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How do you determine if an interval is continuous?

A 1-dimensional interval (a, b) is continuous if for any k in (0, 1) the point a + k*(b-a) = a*(1-k) + k*b is also in the interval. This is equivalent to the statement that every point on the line joining a and b is in the interval. The above can be extended to more dimensions analogously.