Question

find the class marks of the class 160-165 ​

Answer 1

Answer:

162.5

Step-by-step explanation:

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Answer 2

The class mark is 162.5

• In a frequency distribution, a class mark is the midpoint or middle value of a certain class. For instance, because 15 is the midpoint between 10 and 20, it is the class mark of 10 to 20. The class mark is used in statistics in a variety of ways, including for computing the mean, creating line graphs, calculating the average of each class in a frequency distribution, etc.
• Upper Limit is the class interval's highest value. There couldn't be anything in that class that was bigger than the highest limit. Lower Limit is the class interval's lowest value. There couldn't be anything in that class lower than the lower limit.

Here, according to the given information, we are given that,

The class is 160 - 165.

Now, the upper limit of the class is given as 165.

The lower limit of the class is given as 160.

We know that, the class mark of a class is equal to the sum of the upper and the lower limit of a class which is then divided by 2.

Then, we get,

Class mark = $\frac{Upper limit +Lower limit}{2} = \frac{160+165}{2} = 162.5$

Hence, the class mark is 162.5

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