Please show all step-by-step procedures and all formulas and explainations. I Will rate it helpful.

Suppose the average Canadian household spends $2,550 a year on all types of insurance. Suppose the figures are uniformly distributed between the values of $300 and $4,800. "(Round your answer to 1 decimal place, e.g. 1.7.) "(Round your answers to 6 decimal places, e.g. 0.759634.) *(Round your answers to 4 decimal places, e.g. 0.7574.) (a) What are the standard deviation of this distribution? Standard deviation = 1290.4 (b) What are the height of this distribution? Height = 2.237136 (c) What proportion of households spends more than $4,000 a year on insurance? P(x > 4,000) = 0.1790 (d) What proportion of households spends more than $5,000 a year on insurance? P(x > 5,000) = 0.0000