Answer:
the probability is 69.15%
Step-by-step explanation:
We have that the mean is 38 inches (m) and the standard deviation is 2 inches (sd), so we are asked:
P (x <39)
P ((x - m) / sd <(39 -38) /2)
P (z <0.5)
If we look in the normal distribution table we have to:
P (x <39) = 0.6915
That is, the probability is 69.15%
Answer:
d 0.0235
Step-by-step explanation:
We assume that the lifetime of the blenders follows a normal distribution, with mean of 36 months and standard deviation of 6 months.
We have to calculate the probability that the blenders have a lifetime lower than 24 months, and therefore apply the guarantee.
First, we calculate the z-score:
Then, the probability that the blenders lifetime is 24 or less is:
Answer:
Right angle
Step-by-step explanation:
I dont know I just guessed lol
Good luck, i dont know at all, dont give up
P= 2I + 2W, -2I -2W
Solve for P by Simplifying both sides of the equations, then isolating the variable.