Suppose the average height of a sixth-grader is 60 inches and the standard deviation is 2 inches, and assume that the heights are normally distributed.
1. The percentage of sixth-graders between 54 inches and 66 inches tall is
2. The percentage of sixth-graders between 56 inches and 64 inches tall is
3. The percentage of sixth-graders between 58 inches and 62 inches tall is

. + λrh() e 1 1 2 4 4 4 4 4 3 4 4 4 4 4 + th−1(− s(x)2 dx ω + λrh−1() e 2 1 2 4 4

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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step-by-step explanation: