The weight of tea in 70 packets are shown in the following table

Find the mean weight of packets.

The weights of coffee in 70 packets are shown in the following table. Determine the modal weight.

The weights of coffee im 70 packets are shown in the following table Determine the modal weight.

The weights of coffee im 70 packets are shown in the following table Determine the modal weight.

The weights (in kg) of 50 wrestlers are recorded in the following table. Find the mean weight of the wrestlers.

The weights (in kg) of 50 wrestlers are recorded in the following table. Find the mean weight of the wrestlers.

The weights in kilograms of 60 workers in a factory are given in the following frequency table.Find the mean weight of a worker. Weight (in kg) x:606162636465 No.of workers f:581416107

The weights of a coffee in 70 jars are shown in the following table . .Determine variance and standard deviation of the above distribution.