Answer: the standard deviation is 2.4
Step-by-step explanation:
The formula for standard deviation is expressed as
s = √npq
Where
p = probability of success
q = probability of failure
n = number of samples
From the information given,
The probability of success, p is given as 0.2. It means that the probability of failure, q will be 1 - p = 1 - 0.2 = 0.8
There were 35 attempts. This means that total number of samples, n is 35
The standard deviation becomes
√35×0.2×0.8 = √5.6 = 2.366
Approximately 2.4
1.85 or 1.9 i believe will be the answer
perimeter of a rectangle is 2(l+w)
so 14cm then you need it to be in meters so 100cm=1m
.14m then for how much it is 1.2 per meter so divide both the meters and dollars by 7.14285714286 and you get
it should cost $0.168 to fence the plot
Answer:
OPTION A
Step-by-step explanation:
y - y1 = m(x - x1)
slope(m) = 4/5
(-2,1)....x1 = -2 and y1 = 1
now we sub
y - 1 = 4/5(x - (-2) =
y - 1 = 4/5(x + 2)