# Month: April 2021

#### Solved (Free): Students in a high school can choose to study Spanish or French as a foreign language

Students in a high school can choose to study Spanish or French as a foreign language. In a given academic…

#### Solved (Free): The average salary of a male full professor at a public four-year institution offering classes at the doctoral level is

The average salary of a male full professor at a public four-year institution offering classes at the doctoral level is…

#### Solved (Free): Let $Y_1, Y2, \cdots, Y_n$ be independent random variables such that each $Y_i$ has a gamma distribution with parameters

Let $Y_1, Y2, \cdots, Y_n$ be independent random variables such that each $Y_i$ has a gamma distribution with parameters $\alpha_i$…

#### Solved (Free): A data set has a mean of 1,200 and a standard deviation of 80 Using Chebyshev’s theorem, what percentage of

A data set has a mean of 1,200 and a standard deviation of 80. a. Using Chebyshev's theorem, what percentage…

#### Solved (Free): The lengths of 3 inch nails manufactured on a machine are normally distributed with a mean of 3 and a standard deviation of

The lengths of 3 inch nails manufactured on a machine are normally distributed with a mean of 3 and a…

#### Solved (Free): In a study, physicians were asked what the odds of breast cancer would be in a woman who was initially thought to have

In a study, physicians were asked what the odds of breast cancer would be in a woman who was initially…

#### Solved (Free): The probability that first processing machine is not working properly at any time is 0.07

The probability that first processing machine is not working properly at any time is 0.07, and the probability that the…

#### Solved (Free): New born elephant calves usually weigh between 200 and 250 pounds until october 2006

Newborn Elephant Weights. New born elephant calves usually weigh between 200 and 250 pounds until october 2006, that is. an…