Find the class frequencies that are missing

Reference no: EM13933298

1. Calculate mean, median and mode from the following data:

Marks more than :	0	20	40	60	80	100 120
No. of students	80	76	50	28	18	9 3

2. (a) Calculate mean, median , mode from the following data of the heights in inches of a group of students:

61, 62, 63 61, 63, 64. 60. 65, 63, 64, 66, 64,

Now suppose that a group of students, whose heights are 60, 96, 59, 68,67 and 70 inches, is added to the original group, find the med ian and mode of the combined group.

(b) From the following frequency d istribution, find the class frequencies that are missing:

Reference no: EM13933298

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