Question

measurements of some variable x were made at an interval of 1 minute from 10 a.m. to 10:20 a.m. the data thus obtained is as follows : x : 60 62 65 64 63 61 66 65 70 68 63 62 64 69 65 64 66 67 66 64 50. 1) the value of x which is exceeded 10% of the time in the duration of measurement is

Answer 1

Sort the X values in decreasing order. Write all the 20 numbers even if some numbers are repeating. So, totally 20 numbers = 100%, then 2 numbers = 10%. So the first 2 numbers i.e., 70,69 are 10%. Then 68,67 are 20%. So the number that exceeds 10% is 68.