(i) Bill spent = $1960 , (ii) Required % = 3.57% And (iii) Degree: Food = 39.6° , Saving = 61.2° , Other = 97.2° , Rent/Bill = 162°
(i) On level 2. (ii) 120 students passed the exam in Level 2. (iii)There are 5 best students that score between 90 to 95 marks.
The Mean = 39
The Mean Deviation = 13.76
The Required Boundary = 29.5 – 40.5
The Range = 70
(i) The median is 22.7
(ii)The class interval is 21- 22
(i)It is continuous data hostogram
(ii) There are 14 students
(iii) ?
(iv) ?
(v) ?
Get the complete solutions.
Answer: (A)
Answer: (B)
Answer: (A) 1
Answer: (C)
Answer: (D)
The Required Fraction = 5/8
(a) The Mean = 73.6
(b) The Median = 74
(c) The Mode = 67 and 76
(a) The Median = (n+5)/2
(b) The possible values of n are 5 and 6
(c) 4 and 5 are the mode of the given set of data
(a) The required maximum value of x = 4
(b) The required minimum value of x = 19
(c) The range is from 0 to 8 inclusive.
(i) x = 7 and y = 3
(ii) Mean = 60.6
(iii) Modal class = 70 – 80
and median class = 60 -70
(iv) Range = 26
Answer : (H) 83
Answer: (G) 96
(i) ?
(ii) ?
(iii) 60%
Get the solutions
standard deviation, s = 12 (B)
Answer: zero
Answer: (C)
(i) standard deviation, s = 3.44
(ii) σ2 ,Variance = 11.8
Answer: rk = 0.9122
(High positive correlation)
Answer: (B)
(i) Q1 = 7
(ii) Q2 = 9
(iii) Q3 = 11
(iv) Q3 – Q1 = 11 – 7 = 4
(i) The semi-interquartile range = 1.5
(ii) The coefficient of range = 0.163
(iii) The coefficient of quartile deviation = 0.0698