Answer:
2676 students
Step-by-step explanation:
Total number of students =. 40,140
During study:
Sample size = 210
Number of samples who speak 3 or more languages = 14
Proportion who speak 3 or more languages :
14 / 210 = 0.0666666
Applying the proportion to the total. Population :
0.0666666 * total number of students
0.0666666 * 40140
= 2675.997324
= approximately 2676 students
Of what? The surface area of what?
Answer: 0.625
Step-by-step explanation:
Given : The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed with interval= [0 minutes, 6 minutes]
The probability density function :-
The interval of required event = [2.25 seconds, 6 seconds]
Now, the probability that a randomly selected passenger has a waiting time greater than 2.25 minutes is given by :-
Hence, the probability that a randomly selected passenger has a waiting time greater than 2.25 minutes = 0.625
Step-by-step explanation:
3√(x - 4) + 7 = -14
3√(x - 4) = -21 (subtract 7 from both sides)
√(x - 4) = -7 (divide 3 on both sides)
However √y is non-negative for all values of y in the domain of √y.
Hence there is no real solution for x.
Answer:
1. B
2. A
Step-by-step explanation:
I've done this before, very easy.
