First, you have to multiply 60000 by 3 and you will get 180000. Then you add 4 and your final answer is 180004
Here are some Examples: :)
is 0.2222222222 and so on
is 0.4444444444 and so on
is 0.777777777 and so on
So it could be anything like 9 or 6 as long is its like this
You would use the tangent first, because the opposite of 40 would be x and the adjacent would be 30ft
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
