alleryStart learning →The mean of six numbers is 14. A seventh number, 28, is added. What is the new mean?
A14
B18
C15
D16
Answer & Solution
Correct answer: D. 16
The old total is 84, the new total is 112, and 112 divided by 7 is 16.
Keep practising Measures of Central Tendency and Dispersion
Browse all Measures of Central Tendency and Dispersion questions for CA Foundation, or explore more Quantitative Aptitude topics.
Related questions
A data set has median 10. Every value is tripled and then 4 is subtracted. The new median Every observation is doubled and then 5 is added. A mode of 6 becomes:In actuarial science, the coefficient of variation is known as:When the mean is close to zero, the coefficient of variation tends to:The coefficient of variation of an exponential distribution equals:For the progression 7, 11, 15, 19, 23 the mean and median are both:Which measure of dispersion uses only the largest and smallest values?Heights of plants are in centimetres. The range of these heights is expressed in: