निम्नलिखित आंकड़ों का बहुलक ज्ञात कीजिये ।
64, 61, 62, 62,63, 64, 64, 60, 65, 63, 64, 65, 66, 64

Find the wrong number in the following series. 66, 56, 65, 57, 64, 58, 61

The average marks of 40 students in an English exam is 72. Later it is found that three marks 64, 62 and 84 were wrongly entered as 68, 65 and 73. The average after mistakes were rectified is अंग्रेजी के परीक्षा में 40 छात्रों का औसत अंक 72 है। बाद में पता चला है कि तीन अंक 64, 62 और 84 गलती से 68, 65 और 73 लिख दिए गए थे। गलतियाँ सुधारने के बाद औसत है-

The weights of 9 apples are 50, 60, 65, 62, 67, 70, 64, 45, 48 grams . Their mean weight is

Number series 63,64,67,72,79,….

The difference between the mean and median of the data 66, 59, 68, 65, 62, 59, 58, 56, 63, 65 is:

Find the mean and median of the data : 35, 48, 92, 76, 64, 52, 51, 63 and 71. If 51 is replaced by 66, what will be the new median ?

Factorise: y ^(16) - 63 y ^(8) - 64

If 69.5 is the mean of 72, 70, x, 62, 50, 71, 90, 64, 58 and 82, find the value of x.