Answer:
The probability is 
Step-by-step explanation:
The psychology class has 9 freshman male, 15 freshman females, 8 sophomore male and 12 sophomore female.
Total population constitution of the class=
17 males and 27 females and 44 students in total.
If on selecting on the first attempt, a male has been picked up then the number of males for the picking up in the second attempt has to decrease by one.
Also, the total number of students from which it has to be selected also decreases by 1, because one child has already been selected.
Therefore for Second Attempt, Total 43 students and 16 males.
Probability=
Probability=
Getting at least a 80% ( B average) is also good still very close to 90
Answer:
Step-by-step explanation:
The significant figures of a number that carry meaningful contribution to its measurement resolution
Answer:
angle of depression ≈ 53.8°
Step-by-step explanation:
the angle of depression is the measure of the angle from the horizontal downwards from the top of the flag pole.
this angle is alternate to ∠ A and is congruent to ∠ A
using the sine ratio in the right triangle
sin A =
=
, then
∠ A =
(
) ≈ 53.8° ( to 1 d.p )
Angle of depression ≈ 53.8°
Answer:
2(x-2)≥ 24
Step-by-step explanation: