Question
Mean and Standard deviation of 100 observation is 50 and
10 respectively. What will be the new mean and Standard deviation if each observation is multiplied by 3?Solution
Both mean and SD are affected by change in scale New Mean = 50*3 = 150 New SD = 10*3 = 30
More Research Questions
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
A wire is bent to form a square whose sides are of 132 cm. If the same wire is bent to form a circle, then find the area (in cm2) of the circ...
(1177.99 + 226.99 + 94.923) ÷ 24.97% of 59.989 = ?
499.98% of (√440.8 + 12.922 ) - 12.02 of 4.82 = ? of 9.82 + 9.98% of 999.94
215.003X4.021 + 11.05 + 71.02 =?
(29.98% of 9840) + ? + (19.899% of 8490) = 7560
14.742 ÷ 24.98 × 15.76 = ?% of 359.88
Which of the following options is the closest approximate value which will come in place of question mark (?) in the following equation?
48.9 × ...
? = 782.24 + 1276.97 – 4.992 Â
(699.88% of 32) + (80.44% of 400.23) = ? + (11.67)2
