Alexis works at a health care facility. She has measured the hemoglobin levels of 400 people. The data follows a normal distribution with a mean of 16 g/dL and a standard deviation of 2. What percentage of people had a hemoglobin level of 18 g/dL or higher?

Step-by-step explanation:Alice works at a health care facility. She has measured the hemoglobin levels of 200 people. The data follows a normal distribution with a mean of 14 g/dL and a standard deviation of 1.

From the given data, we can conclude that about (32) people have hemoglobin levels less than 13, and about (100) people have hemoglobin levels greater than 14.

Step-by-step explanation:

Let X be the hemoglobin level

x is normal with (16,2)

people having hemoglobin levels >18g/dl

P(X>18) = P(Z<(8-14)/2) =

"Alice works at a health care facility. She has measured the hemoglobin levels of 200 people. The data follows a normal distribution with a mean of 14 g/dL and a standard deviation of 1.

From the given data, we can conclude that about (32) people have hemoglobin levels less than 13, and about (100) people have hemoglobin levels greater than 14."

"Given that Alice works at a health care facility. She has measured the hemoglobin levels of 200 people. The data follows a normal distribution with a mean of 14 g/dL and a standard deviation of 1.

Let X be the hemoglobin level

X is normal with (14, 1)

People having hemoglobin levels <13

would be

P(X<13) = P(Z<(13-14)/1) =0.16

Hence for 200 people no of people having less than 16 = 0.16(200) =32

P(X>14) = 0.5

Hence no of people =100"

c

step-by-step explanation:

it isn't d, because the interquartile range is from 27-57. and the interquartile range is basically half the data, it's pretty obvious.

it isn't b, because like i said earlier, the interquartile range is from 27-57. 57-27 is 30. the real range has to be longer

not a either. although it looks like it, 3/4 of the data is not greater than 27. but if c is wrong than this should be correct

the correct answer is c, because 13 is the point in which the plot starts

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!