the statement c will always be true in the end
Answer:
a. Mean = 20
Sd = 4
b. Probability of X = 20 = 0.1960
Step-by-step explanation:
we have
n = 25
p = 80% = 0.8
mean = np
= 0.8 * 25
= 20
standard deviation = √np(1-p)
= √25*0.8(1-0.8)
=√4
= 2
probability that exactly 20 favours ban
it follows a binomial distribution
= 25C20 × 0.8²⁰ × 0.2⁵
= 53130 × 0.01153 × 0.00032
= 0.1960
Probability of X = 20 = 0.1960
That would be B) B
hope it helps
X=54 you do 331-7=324 the do 324/6=54 the end hope this helps
Answer: 276 is 300% of 92.
Explanation: 279 is 3x of 92. 92x3 =279 3= 3.00 -> 300%
Hope this helps
