The current, in amps, in a wire was measured several times and the results noted as follows:   XXXXXXXXXX XXXXXXXXXX Calculate the mean current, giving your answer to 1 d.p. The temperature, in °C, at...

The current, in amps, in a wire was measured several times and the results noted as follows:  13.1 12.9 13.1 12.8 12.7 12.6 13.2 13.1 Calculate the mean current, giving your answer to 1 d.p.

The temperature, in °C, at which a liquid froze was recorded several times. The results are -7 -4 -1 -6 -3 -2 -3 -4 Calculate the mean temperature at which the liquid freezes. Give your answer to the nearest integer.