What is the mean of 5 numbers and 25 observations?

The mean of 5 numbers is 20. If one number is excluded, mean of the remaining numbers becomes 23. Find the excluded number. The excluded number is = 100 – 92 = 8. 8. The mean of 25 observations is 27. If one observation is included, the mean still remains 27. Find the included observation. The mean of 25 observations is 27.

What is the next number in the sequence 1 2 3 4?

Step by step solution of the sequence is Series are based on square of a number 1 = 12, 4 = 22, 9 = 32, 16 = 42, 25 = 52 ∴ The next number for given series 1, 2, 3, 4, 5 is 6 ∴ Next possible number is 62 = 36

What is the mean of the first twelve natural numbers?

The first twelve natural numbers are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 Therefore, the mean of the first twelve natural numbers is 6.5 5. (i) Find the mean of the first six prime numbers. (ii) Find the mean of the first seven odd prime numbers.

How do you find the mean of 8 variates?

If the mean of first three observations is 14 and that of the last three is 17, find the third observation. The third observation = 93 – 75 = 18. 10. The mean of 8 variate is 10.5. If seven of them are 3, 15, 7, 19, 2, 17 and 8, then find the 8th variate. Mean of 8 variates = 10.5 The 8 th variate = 84 – 71 = 13. 11.

What is the actual mean of the 9 observations?

Mean of 9 observations was found to be 35. Later on, it was detected that an observation 81 was misread as 18. Find the correct mean of the observations. The actual mean = 378/ 9 = 42.

What does average mean in statistics?

It is a relatively simple statistical concept that is widely used in many areas. The equation below is one of the more commonly understood definitions of the average: where the sum is the result of adding all of the given numbers, and the count is the number of values being added.

What is the median mark in 11 questions of a question paper?

A student scored the following marks in 11 questions of a question paper: 7, 3, 4, 1, 5, 8, 2, 2, 5, 7, 6. Find the median marks. Marks scored in 11 questions of a question paper by the student are: Hence, the median mark is 5.