A geneticist took a large sample of adults and measured their heights. Summary statistics for the heights of the men and women in the study are shown in the table below.
Suppose that we choose a random man and a random woman from the study and look at the difference
between their heights. We can assume that their heights are independent. Let M represent the man's
height, W represent the woman's height, and D represent the difference between their heights
(D = M - W).
Mean
Standard deviation
Men
HM = 175 cm
OM = 8 cm
Women
HW = 162 cm
OW = 7 cm
Find the standard deviation of D.
Choose 1
1 centimeters
15 centimeters

Not 1 or 15

Step-by-step explanation:

13

Step-by-step explanation:

khan academy

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.

step-by-step explanation:

i think its about 8