Question

If the daily readings of the barometer are 29.83, 29.97, missing, 8.99, 29.62, 29.47, 30.32. The average is known as 29.85. What is the missing reading

Answer 1

Answer:

50.75

Step-by-step explanation:

Let x denote the missing value of the barometer reading

We know that average is the sum of all observations divided by the total number of observations

The observations are : 29.83, 29.97, x, 8.99, 29.62, 29.47, 30.32

So there are 7 total observations

The average of the barometer readings is 29.85

=> (Sum of observations) / (Number of observations) = 29.85

=> (29.83 + 29.97 + x + 8.99 + 29.62 + 29.47 + 30.32) / (7) = 29.85

=> (x + 158.2) / 7 = 29.85

=> (x + 158.2) = 29.85 * 7

=> x + 158.2 = 208.95

=> x = 208.95 - 158.2

=> x = 50.75

Hence the missing value of the barometer reading is 50.75