Answer:
D
Step-by-step explanation:
11/3 x 6/7 x 131/13 =
8646/273 =
31.7
Answer:
Step-by-step explanation:
X no of questions student answers is binomial with n =40 and p =0.5
If approximated to normal, X is Normal with
mean = np = 20 and variance = npq = 10
P(X>N) >0.10
We use std normal distribution table to get z value first then convert to x value

So 
This is with continuity correction.
Hence without continuity correction this equals 7.2-0.5 = 6.7
x>6.7
n = 7
The answer is 1/2. The purple shape is half the size of the black shape.
Answer:
Im bored wanna talk?
Step-by-step explanation: