Question

The cargo loads that Niels transports in his truck have a mean weight of 42,000 lb with a standard deviation of

1,500 lb.
What will be the mean and standard deviation of the distribution of weights in kilograms?
1 lb approximately equals 0.45 kg.

Answer 1

The mean of the distribution of weights is 18,900kg and the standard deviation is 675kg.

Explanation:

Conversion of units questions are solved using rules of three.

1 lb approximately equals 0.45 kg.

Mean:

1lb - 0.45kg

42000lb - x kg

x = 42000*0.45 = 18900 kg.

Standard deviation:

1lb - 0.45kg

1500lb - xkg

x = 1500*0.45 = 675kg

The mean of the distribution of weights is 18,900kg and the standard deviation is 675kg.