Question

Fatima conducted an experiment where she asked people to estimate the temperature of glasses of water. She recorded how far the estimates were from the actual temperatures, using positive values for guesses that were too high and negative values for guesses that were too low. Her results are in the table below.

Answer 1

0.75°C

Explanation:

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Answer 2

0.75°C

Explanation:

Person A Person B Person C

-3 4 8

-1 -4 -2

0 2 5

2 -3 1

To get Fatima mean value, we have to add all the given values together

= - 3 + 4 + 8 - 1 - 4 - 2 + 0 + 2 + 5 + 2 - 3 + 1

= 9

Estimate is 9 deg above Actual Temperature in 12 readings

The formula for our Mean Value will be, the added values divided by actual temperatures

Added values = 9

Actual temperature = 12

Mean value = 9 ÷ 12 = 0.75°C above actual Temperature