Mathematics
The class marks of a distribution are 62, 67, 72, 77, 82 and 87. Find the class-size and class-limits.
Related Questions
In given figure, AB is a side of a regular pentagon and BC is the side of a regular hexagon. Find :
(i) ∠AOB
(ii) ∠OBC
The cost of 250 articles is given below :
Cost (in ₹) No. of articles less than 20 22 less than 30 40 less than 40 75 less than 50 190 less than 60 228 less than 70 250 Construct a frequency distribution table for the data given above. Also, answer the following :
(i) how many articles cost from ₹ 30 to less than ₹ 50 ?
(ii) how many articles have cost at most ₹ 40?
(iii) how many articles have cost at least ₹ 50?
By taking classes 30 - 40, 40 - 50, 50 - 60, ……………, construct a frequency table for the following data :
65 34 74 49 52 35 71 55 61 40 56 38 52 56 52 33 60 35 49 37 53 50 44 30 62 50 47 45 47 50 63 61 54 58 47 64 37 38 44 42 47 55 70 33 75 49 47 30 60 69 Also, construct a combined histogram and frequency polygon for the distribution.
State, which of the following variables are continuous and which are discrete :
(i) marks scored in a test.
(i1) daily temperature of a city.
(iii) sizes of shoes.
(iv) distance covered by a train.
(v) time.