Afarmer has four plots of land, each with an area of 12 acres. he divides them into a number of parts each with an area of 8/9 of an acre how many parts are there on the four plots of land

The number of parts on the four plots are 40.5

Step-by-step explanation:

The number of plots is 4 and each has an area of 12 acres, thus the total area is 36 acres.

Dividing them into a number, n, of parts gives;

where n is the number of parts.

                = of an acre

Thus,

                 n = (36 × 9) acres ÷ 8 acres

                     =  324 ÷ 8

                      = 40.5

Thus it has been divided into 40.5 parts.

b.an increase in a causes b to decrease

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.