Average Precipitation For the first 7 months of the year, the average precipitation in Toledo, Ohio, is 19.32 inches. If the average precipitation is normally distributed with a standard deviation of 2.44 inches find these probabilities.
a. A randomly selected year will have precipitation greater than 18 inches for the first 7 months.
b. Five randomly selected years will have an average precipitation greater than 18 inches for the first 7 months.

Upload speed are measured on a standard scale I which the target value is 1.0. Data collected over the past year indicate that the upload speeds are approximately normally distributed with a means of 1.005 and a standard deviation of 0.10. Each day at 25 random times , the upload speed is measured . Assuming that the distribu

1. For a standardized normal distribution calculate the following probabilities
a. P(0.00 < z < or equal to 2.33)
b. P( -1.00 < z < or equal to 1.00)
c. P( 1.78 < z < 2.34).
2. A random variable is normally distributed with mean of 25 and standard deviation of 5. If an observation is randomly selected
a. what val

A normal distribution has a mean of 50 and a standard deviation of 4. Please use Excel Spreadsheets. Show all work and formulas
a) Compute the probability of a value between 44.0 and 55.0
b) Compute the probability of a value greater than 55.0
c) Compute the probability of a value between 52.0 and 55.0

A normal distribution has a mean of 50 and a standard deviation of 4.
a-compute the probability of a value between 44.0 and 55.0.
b-compute the probability of a value greater than 55.0.
c-compute the probability of a value between 52.0 and 55.0

please explain how to solve for probability...
If i have a class of 14 males and 36 females and the professor selects a name from the class using random sampling what is the probability that the first student selected will be a female?
P=
If the random sample of n=3 students is selected and the first two are both females w

What are the steps for using the Normal Table to find the following:
a. The Probability steps for (z<-2.65)
b. The Probability (z>-1.55)
c. The Probability (-2.00Probability (1.25

A normal population has an average of 80 and a standard deviation of 14.0.
Calculate the probability of a value between 75.0 and 90.0.
Calculate the probability of a value of 75.0 or less.
Calculate the probability of a value between 55.0 and 70.0.

1. In its standardized form, the normal distribution
a) has a mean of 0 and a standard deviation of 1.
b) has a mean of 1 and a variance of 0.
c) has an area equal to 0.5.
d) cannot be used to approximate discrete probability distributions.
2. For some positive value of Z, the probability that a standardnormal variable