The average of 6 observations is 45.5. If one new observation is added to the previous observations, then the new average becomes 47. The new observation is-

Question

নিচের অপশন গুলা দেখুন

• 46
• 58
• 56
• 50

Answer 1

সঠিক উত্তর হচ্ছে: 56

ব্যাখ্যা:

New observation
= (47 × 7) - (45.5 × 6)
= 329 - 273
= 56