Answer: =1.34
Step-by-step explanation:
In standard density curve
P(Z<z) = Area left of z, P(Z>z) = area right of z.
P(Z<z) +P(Z>z) =1
Given: z is a standard normal random variable.
To find : value of z if rea to the right of z is 0.01.
i.e. P(Z>z) =0.01
P(Z<z) =1-0.01 = 0.09
from z-score table, z value for this is 1.34.
Hence, z= 1.34
Answer:
The relationship is not a function
Step-by-step explanation:
Answer:
y = - 4x + 5
Step-by-step explanation:
(y-1)/ (5-1) = (x-1)/(-1)
y-1 / 4 = -x+1
y-1 = -4x+4
y = - 4x + 5
Answer:
At least the 75% of the scores of driving exams are between 62 and 82 points.
Step-by-step explanation:
The chebyshev theorem said that the proportion of any distribution that is less than k deviations of the mean is at least .
So, if we replace k by 2, we can calculated the limits as:
Where x is the mean and s is the standard deviation.
Then, is equal to:
It means that at least the 75% of the scores of driving exams are between 62 and 82 points.
The answer is -1.6 hate the 20 character rule