Statistics and Average

If p is less than q , which of the following is the greater than p and less than q?

  • ক. (q – p)/2
  • খ. pq/2
  • গ. (p + q)/2
  • ঘ. pq

উত্তরঃ (p + q)/2

বিস্তারিত

Rahim average 70 in his first m number of exams. After taking n more exams he had an overall average of 75. In terms of m and n his average for the last n exams was—

  • ক. 5n/m + 75
  • খ. (70m + 75n)/(m + n)
  • গ. 80
  • ঘ. (5m + 75)/n

সঠিক উত্তরের জয় বিস্তারিত দেখুন

Average of P numbers is x and average of N numbers is y. Find the average of all of the numbers.

  • ক. (Px + Ny)/(p + N)
  • খ. (Px + Ny)/xy(P + N)
  • গ. x + y
  • ঘ. (x + y)/(P + N)

উত্তরঃ (Px + Ny)/(p + N)

বিস্তারিত

The average of 6 number is 8.5, when one number is discarded the average of the remaining numbers becomes 7.2. What is the discarded number?

  • ক. 7.8
  • খ. 9.8
  • গ. 10
  • ঘ. 12.4

সঠিক উত্তরের জয় বিস্তারিত দেখুন

If a3 - b3 = 513 and a - b = 3, then ab =?

  • ক. 54
  • খ. 55
  • গ. 45
  • ঘ. 34

উত্তরঃ 54

বিস্তারিত

What is the average of 0.36, 4.6, 0.64 and 2.4?

  • ক. 1
  • খ. 2
  • গ. 2.5
  • ঘ. 10

উত্তরঃ 2

বিস্তারিত

If 8x + 8y = 64, what is the average of x and y?

  • ক. 16
  • খ. 4
  • গ. 0
  • ঘ. 1

উত্তরঃ 4

বিস্তারিত

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