This graph shows the temperature of a room over time.
1 answer:
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Answer:
Step-by-step explanation:
Given that:
There are 3 sizes of dishwasher soaps.
Twenty percent of all purchasers select a 25-oz box, 50% select a 40-oz box, and the remaining 30% choose a 65-oz box. Let X1 and X2 denote the package sizes selected by two independently selected purchasers.
Therefore, random samples of size 2 are taken from the population.
The information is well represented in the table below.
25 25 0.20×0.20=0.04 25 0
25 40 0.20×0.50=0.10 32.5 112.5
25 65 0.20×0.30= 0.06 45 800
40 25 0.50×0.20=0.10 32.5 112.5
40 40 0.50×0.50=0.25 40 0
40 65 0.50×0.30=0.15 52.5 312.5
65 25 0.30×0.20=0.06 45 800
65 40 0.30×0.50=0.15 52.5 312.5
65 65 0.30×0.30=0.09 65 0
The sample distribution of is shown below as ;
25 32.5 40 45 52.5 65
0.04 0.10+0.10 0.25 0.06+0.06 0.15+0.15 0.09
= 0.20 =0.12 =0.30
The value of
= 25(0.04) + 32.5(0.20) + 40(0.25) + 45(0.12) + 52.5(0.30) + 65(0.09)
= 44.5 oz
From the same table above ;
the sampling distribution of is be shown below;
0 112.5 312.5 800
0.04+0.25 0.10+0.10 0.15+0.15 0.06+0.06
+0.09
= 0.38 =0.20 = 0.30 0.12
The value of
= (0×0.38)+(112.5×0.20)+(312.5×0.30)+(800×0.12)
=0+112+93.75+96
=301.75
Answer:
36.575
Step-by-step explanation:
you need to find line ab you can do for the triangle and get the line you also need to get the squar root of it as it is still squared then devide by 2 to get the rades then times that by pi and there you go you have the area also sorry for spelling I love math not English
either:
and in that case:
or:
and in that case
So; the answer is: either 2 or 1.75