Question

1. Mode is_______
2. The correct formula for finding the mode of a grouped frequency distribution is......
3. The formula for median of a grouped data is....
4. Ogive is the graph of .........
5. The curve 'less than ogive' is always______
6. The empirical relationship among the Median, Mode and Mean of a data is________
7. The class mark of a class interval is________
8. The mean for grouped data can be found by the direct method_________
9. The mean for grouped data can be found by the assumed mean method......
10. The mean for grouped data can be found by the step deviation method ........
11. The mode for the grouped data can be found by using the formula........
12. Mean is ............
13.Median is ......
14. Measure of central tendency is represented by the abscissa of the point where the "less" than ogive' and 'more than ogive' intersect, is ......
​

Answer 1

Solution :-

1) Mode is _______

• Data which comes most number of times .

2) The correct formula for finding the mode of a grouped frequency distribution is ________

• Mode = l + [(f1 - f0) / (2f1 - f0 - f2)] * h .
• l = lower limit of mode class .
• h = size of class .
• f1 = frequency of mode class .
• f0 = frequency of previous class .
• f2 = frequency of next class .

3) The formula for median of a grouped data is _____ .

• Median = l + [{(n/2) - cf} / f] * h
• l = lower limit of median class .
• n = total frequency .
• cf = Cumulative frequency of class before median class .
• f = frequency of median class .
• h = size of class .

4) Ogive is the graph of cumulative distribution .

5) The curve 'less than ogive' is always rising curve .

6) The empirical relationship among the Median, Mode and Mean of a data is ________

• Mode - Mean = 3(Median - Mean) .
• Mode = 3Median - 2Mean .

7) The class mark of a class interval is ________

• class mark = (Lower limit + Upper limit) / 2 .

8) The mean for grouped data can be found by the direct method _________

• ⅀Fi*Xi / ⅀Fi

9) The mean for grouped data can be found by the assumed mean method _______

• A + ⅀Fi*di / ⅀Fi
• A = Assumed mean .

10) The mean for grouped data can be found by the step deviation method _______

• A + (⅀Fi*ui / ⅀Fi) * h
• h = size of class .
• ui = (xi - A)/h
• A = middle value or assumed mean .

Learn more :-

calculate the median and mode from the following income between (rs)100-200 100-300 100-400 100-500 100-600 no of person...

https://brainly.in/question/23585381

Some students of class X donated for the welfare of old age persons. The contributions are shown in the following distri...

https://brainly.in/question/17314012