Mean Deviation

JEE Main Mathematics · Statistics · 10 questions, latest first

• The mean deviation about the mean for the data is equal to:20265 April, Shift 1 · Q8
• Suppose that the mean and median of the non-negative numbers 21,8,17, a, 51,103, b, 13,67,(a>b), are 40 and 21, respectively. If…20264 April, Shift 1 · Q10
• The mean and variance of 10 observations are 9 and 34.2, respectively. If 8 of these observations are 2,3,5,10,11,13,15,21, then…202628 January, Shift 1 · Q8
• If the mean deviation about the median of the numbers k, 2 k, 3 k, ….., 1000 k is 500, then k^2 is equal to:202622 January, Shift 2 · Q8
• Let the mean and the standard deviation of the observation 2,3,3,4,5,7, a, b be 4 and √2 respectively. Then the mean deviation…20254 April, Shift 2 · Q8
• The frequency distribution of the age of students in a class of 40 students is given below. If the mean deviation about the…20249 April, Shift 1 · Q19
• Let α, β ∈ R. Let the mean and the variance of 6 observations -3,4,7,-6, α, β be 2 and 23, respectively. The mean deviation about…20244 April, Shift 1 · Q20
• Let the median and the mean deviation about the median of 7 observation 170, 125, 230, 190, 210, a, b be 170 and 205/7…20241 February, Shift 1 · Q18
• Let the mean of 6 observations 1,2,4,5, x and y be 5 and their variance be 10. Then their mean deviation about the mean is equal…202311 April, Shift 2 · Q18
• Let S be the set of all values of a_1 for which the mean deviation about the mean of 100 consecutive positive integers a_1, a_2,…202330 January, Shift 2 · Q77