The mean of 5 observation is15. If the mean of first threeobservations

1.	The mean of 5 observation is15. If the mean of first threeobservations is 14 and that ofthe last three is 17, find thethird observation
Answer» Given that Mean of 5 observations is 15. Therefore the sum of observations = 15 * 5 = 75. Given that mean of the first 3 observations is 14. Therefore the sum of first three observations = 14 * 3 = 42. Given that mean of last 3 observations is 17. Therefore the sum of the last three observations = 17 * 3 = 51. Hence, The third observation = (42 + 51) - 75 = 93 - 75 = 18. Make a square root spiral and write the result. of the observation?

The mean of 5 observation is15. If the mean of first threeobservations is 14 and that ofthe last three is 17, find thethird observation

Answer»

Given that Mean of 5 observations is 15.

Therefore the sum of observations = 15 * 5 = 75.

Given that mean of the first 3 observations is 14.

Therefore the sum of first three observations = 14 * 3 = 42.

Given that mean of last 3 observations is 17.

Therefore the sum of the last three observations = 17 * 3 = 51.

Hence,

The third observation = (42 + 51) - 75

= 93 - 75

= 18.

Make a square root spiral and write the result. of the observation?