Find the median income of all the orders

Reference no: EM13933124

1. (a) Calculate mean. median and mode from the following frequency distribution of marks at a test in English.

Marks 5	10 15	20 25	30 35 40	45 50
.lllo. of studems : 20	43 75	76 72	45 39 9	8 6

(b) Geometric mean of 2 numbers is 15. If by mistake one figure is taken as 5, instead of J, find correct geometric mean.

2. (a) A market with 330 firms has the following distribution of average number of laborers in different income groups:

Incommensurable

(value) Rs.	450	750	1050	1350	1650
No. of firms	80	64	52	56	78
Average no. ofworkers	16	24	15	17	8

Find the median income of all the orders.

(b) Determine the Geometric mean for the following values:

X 5 8 12 16

Reference no: EM13933124

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