Given below is the frequency distribution of wages (in Rs.) of 30 workers in a certain factory:
`{:("Wages (In Rs.)", 110-130,130-150,150-170,170-190,190-210,210-230,230-250),(" No. of workers", ""3,"4","5","6","5","4","3"):}` A worker is selected at random. Find the probability that his wages are:
(i)less than Rs. 150            (ii)  at least Rs. 210 (iii)more than or equal to 150 but less than Rs. 210

Given below is the frequency distribution of wages: A worker is selected at random. Find the probability that his wages are: (i) less than Rs. 150 (ii) at least Rs. 210 (iii) more than or equal to 150 but less than Rs. 210.

Construct a histogram for the following data: {:("Monthly school fee (in Rs)", 30-60, 60-90, 90-120, 120-150, 150-180, 180-210, 210-240), ("No. of schools", 5, 12, 14, 18, 10, 9, 4):}

The daily wages (in ₹) of 15 workers in a factory are given below : 195, 185, 145, 155, 135, 180, 175, 200, 150, 125, 190, 180, 170, 175, 190 Find the mean daily wage.

The daily wages (in ₹) of 15 workers in a factory are given below : 195, 185, 145, 155, 135, 180, 175, 200, 150, 125, 190, 180, 170, 175, 190 Find the range of the data.

The following distribution gives the daily income of 50 workers of a factory: Daily income (in Rs): 100-120 120-140 140-160 160-180 180-200 Number of workers: 12 14 8 6 10 Convert the above distribution to a less than type cumulative frequency distribution and draw its ogive.

A die is thrown 500 times with frequency for outcomes 1, 2, 3,4, 5, 6 as given below.Find the probability of getting an outcomes less than 4.

Following frequency distribution given the weights of 38 students of a class: Weight in Kg: 31-35 36-40, 41-45, 46-50, 51-55, 56-60 61-65, 66-70 71-75 No. of students 9 5 14 3 1 2 2 1 1 Find the probability that weight of a student in the class is: (i)at most 60 kg (ii)at least 36 kg (iii)not more than 50kg. Also define two events in this context, one having probability 0 and the other having probability 1.

The following table gives the distribution of total household expenditure (in rupees) of manual workers in a city. Expenditure: (in Rs.) 100-150 150-200 200-250 250-300 300-350 350-400 400-450 450-500 Frequency: 24 40 33 28 30 22 16 7 Find the average expenditure (in Rs.) per household.

Following figures relate the weekly wages (in Rs.) of 15 workers in a factory: 300,250,200,250,200,150,350,200,250,200,150,300,150,200,250 Prepare a frequency table. What is the range in wages (in Rs.) How many workers are getting Rs. 350? How many workers are getting the minimum wages?

Following figures relate to the weekly wages (in Rs.) of 15 workers in a factory: 300,250,200,250,200,150,350,200,250,200,150,300,150,200,250 Prepare a frequency table. What is the range in wages (in Rs)? How many workers are getting Rs. 350? How many workers are getting the minimum wages?