Answer: 0.0241
Step-by-step explanation:
This is solved using the probability distribution formula for random variables where the combination formula for selection is used to determine the probability of these random variables occurring. This formula is denoted by:
P(X=r) = nCr × p^r × q^n-r
Where:
n = number of sampled variable which in this case = 21
r = variable outcome being determined which in this case = 5
p = probability of success of the variable which in this case = 0.31
q= 1- p = 1 - 0.31 = 0.69
P(X=5) = 21C5 × 0.31^5 × 0.69^16
P(X=5) = 0.0241
Answer:
see explanation
Step-by-step explanation:
← evaluate 
using calculator
= 
= 
= 1.762.....
≈ 1.8 ( to 1 dec. place )
PLEASE DONT USE THAT LINK
Answer:
-17x-3
Step-by-step explanation:
Distribute the negative to the second part of the equation. remove the parenthesis from the first part and then add like values.
-4x-2-13x-1
-4x-13x-2-1
-17x-3
Answer:
170
Step-by-step explanation:
