X + y > = 36 (thats greater then or equal)
2x + 0.6y < 40
Answer:
P(X = 4) = 0.1876
Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
In this question:
We want P(X = 4). So
Answer:
6
Step-by-step explanation:
pp
Answer:
A) 26
B) 53
C) 57
Step-by-step explanation:
Your trying to find what the missing letters equal (A, B, C), so looking at the problem there are two "total" rows so first you need to figure out the missing numbers. You don't need to worry about titles but only the "Total", the question doesn't ask to solve for any of those. So when solving depending on what number your going with so lets start with A.
This is a two way table so there is 21, 47 and 17, 43 on each side of A. So we need to solve starting with 21, 47.
T = 47
BV (Boy votes) = 21
Subtract.
47 - 21 = 26
Then we need to solve the other side 17, 43.
43 - 17 = 26
So this means the answer for A is 26.
To move this along i'm going to solve the others for you. (Starting with B then C)
17 + 36 = 53
100 - 47 = 53
B is 53.
Next C
21 + 36 = 57
100 - 43 = 57
C is 57.
Cos 52 = 0.6157
sin 42 = cos 48 = 2/3 (because 42 + 38 = 90 - complementary angles)
if tan 20,5 = 3/8 then tan 69.5 wil = 1 / 3/8 = 8/3