Answer: the probability that a measurement exceeds 13 milliamperes is 0.067
Step-by-step explanation:
Suppose that the current measurements in a strip of wire are assumed to follow a normal distribution, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = current measurements in a strip.
µ = mean current
σ = standard deviation
From the information given,
µ = 10
σ = 2
We want to find the probability that a measurement exceeds 13 milliamperes. It is expressed as
P(x > 13) = 1 - P(x ≤ 13)
For x = 13,
z = (13 - 10)/2 = 1.5
Looking at the normal distribution table, the probability corresponding to the z score is 0.933
P(x > 13) = 1 - 0.933 = 0.067
Answer:
12
Step-by-step explanation:
f(14)= f (3 + 11)
= f(3) = 12
Therefore the value of f(14) is 12.
Answer:
2.5 years
Step-by-step explanation:
Given data
Principal= Rs 24000
Final amount A= Rs 30000
Rate r= 10%
The simple interest expression is
A=P(1+rt)
substitute
30000=24000(1+0.1*r)
30000=24000+2400t
30000-24000=2400t
6000=2400t
t= 6000/2400
t=2.5
Hence the time is 2.5 years
